ID CVE-2018-1312
Summary In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.
References
Vulnerable Configurations
  • Apache Software Foundation Apache HTTP Server 2.4.0
    cpe:2.3:a:apache:http_server:2.4.0
  • Apache Software Foundation Apache HTTP Server 2.4.1
    cpe:2.3:a:apache:http_server:2.4.1
  • Apache Software Foundation Apache HTTP Server 2.4.2
    cpe:2.3:a:apache:http_server:2.4.2
  • Apache Software Foundation Apache HTTP Server 2.4.3
    cpe:2.3:a:apache:http_server:2.4.3
  • Apache Software Foundation Apache HTTP Server 2.4.4
    cpe:2.3:a:apache:http_server:2.4.4
  • Apache Software Foundation Apache HTTP Server 2.4.6
    cpe:2.3:a:apache:http_server:2.4.6
  • Apache Software Foundation Apache HTTP Server 2.4.7
    cpe:2.3:a:apache:http_server:2.4.7
  • Apache Software Foundation Apache HTTP Server 2.4.8
    cpe:2.3:a:apache:http_server:2.4.8
  • Apache Software Foundation Apache HTTP Server 2.4.9
    cpe:2.3:a:apache:http_server:2.4.9
  • Apache Software Foundation Apache HTTP Server 2.4.10
    cpe:2.3:a:apache:http_server:2.4.10
  • Apache Software Foundation Apache HTTP Server 2.4.12
    cpe:2.3:a:apache:http_server:2.4.12
  • Apache Software Foundation Apache HTTP Server 2.4.14
    cpe:2.3:a:apache:http_server:2.4.14
  • Apache Software Foundation Apache HTTP Server 2.4.16
    cpe:2.3:a:apache:http_server:2.4.16
  • Apache Software Foundation Apache HTTP Server 2.4.17
    cpe:2.3:a:apache:http_server:2.4.17
  • Apache Software Foundation Apache HTTP Server 2.4.18
    cpe:2.3:a:apache:http_server:2.4.18
  • Apache Software Foundation HTTP Server 2.4.19
    cpe:2.3:a:apache:http_server:2.4.19
  • Apache Software Foundation HTTP Server 2.4.20
    cpe:2.3:a:apache:http_server:2.4.20
  • Apache Software Foundation Apache HTTP Server 2.4.21
    cpe:2.3:a:apache:http_server:2.4.21
  • Apache Software Foundation Apache HTTP Server 2.4.22
    cpe:2.3:a:apache:http_server:2.4.22
  • Apache Software Foundation HTTP Server 2.4.23
    cpe:2.3:a:apache:http_server:2.4.23
  • Apache Software Foundation HTTP Server 2.4.24
    cpe:2.3:a:apache:http_server:2.4.24
  • Apache Software Foundation Apache HTTP Server 2.4.25
    cpe:2.3:a:apache:http_server:2.4.25
  • Apache Software Foundation Apache HTTP Server 2.4.26
    cpe:2.3:a:apache:http_server:2.4.26
  • Apache Software Foundation Apache HTTP Server 2.4.27
    cpe:2.3:a:apache:http_server:2.4.27
  • Apache Software Foundation Apache HTTP Server 2.4.28
    cpe:2.3:a:apache:http_server:2.4.28
  • Apache Software Foundation Apache HTTP Server 2.4.29
    cpe:2.3:a:apache:http_server:2.4.29
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
  • Debian Linux 9.0
    cpe:2.3:o:debian:debian_linux:9.0
CVSS
Base: 6.8
Impact:
Exploitability:
CWE CWE-287
CAPEC
  • Authentication Abuse
    An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Utilizing REST's Trust in the System Resource to Register Man in the Middle
    This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
  • Man in the Middle Attack
    This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.
nessus via4
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3627-2.NASL
    description USN-3627-1 fixed vulnerabilities in Apache HTTP Server. This update provides the corresponding updates for Ubuntu 18.04 LTS. Original advisory details : Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server mod_authnz_ldap module incorrectly handled missing charset encoding headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2017-15710) Elar Lang discovered that the Apache HTTP Server incorrectly handled certain characters specified in . A remote attacker could possibly use this issue to upload certain files, contrary to expectations. (CVE-2017-15715) It was discovered that the Apache HTTP Server mod_session module incorrectly handled certain headers. A remote attacker could possibly use this issue to influence session data. (CVE-2018-1283) Robert Swiecki discovered that the Apache HTTP Server incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to crash, leading to a denial of service. (CVE-2018-1301) Robert Swiecki discovered that the Apache HTTP Server mod_cache_socache module incorrectly handled certain headers. A remote attacker could possibly use this issue to cause the server to crash, leading to a denial of service. (CVE-2018-1303) Nicolas Daniels discovered that the Apache HTTP Server incorrectly generated the nonce when creating HTTP Digest authentication challenges. A remote attacker could possibly use this issue to replay HTTP requests across a cluster of servers. (CVE-2018-1312). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-12-01
    plugin id 109466
    published 2018-05-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109466
    title Ubuntu 18.04 LTS : apache2 vulnerabilities (USN-3627-2)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-0879-1.NASL
    description This update for apache2 fixes the following issues : - CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a \'Session\' header leading to unexpected behavior [bsc#1086814]. - CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817] - CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813] - CVE-2017-15715: a regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files.[bsc#1086774] - CVE-2018-1312: when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. [bsc#1086775] - CVE-2017-15710: mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. [bsc#1086820] - gensslcert: fall back to 'localhost' as hostname [bsc#1057406] Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-12-01
    plugin id 108876
    published 2018-04-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=108876
    title SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:0879-1)
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2019-1015.NASL
    description According to the versions of the httpd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.(CVE-2018-1303) - In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.(CVE-2017-15710) - In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename.(CVE-2017-15715) - In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.(CVE-2018-1312) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-23
    modified 2019-01-22
    plugin id 121275
    published 2019-01-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=121275
    title EulerOS Virtualization 2.5.1 : httpd (EulerOS-SA-2019-1015)
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2018-1152.NASL
    description According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.(CVE-2017-15710) - In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename.(CVE-2017-15715) - In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.(CVE-2018-1312) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-11-13
    plugin id 110156
    published 2018-05-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=110156
    title EulerOS 2.0 SP2 : httpd (EulerOS-SA-2018-1152)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-375E3244B6.NASL
    description This update includes the latest upstream release of the Apache HTTP Server, version 2.4.33. A number of security vulnerabilities are fixed in this release : - *Low*: Possible out of bound read in mod_cache_socache (CVE-2018-1303) - *Low*: Possible out of bound access after failure in reading the HTTP request (CVE-2018-1301) - *Low*: Weak Digest auth nonce generation in mod_auth_digest (CVE-2018-1312) - *Low*: bypass with a trailing newline in the file name (CVE-2017-15715) - *Low*: Out of bound write in mod_authnz_ldap when using too small Accept-Language values (CVE-2017-15710) - *Moderate*: Tampering of mod_session data for CGI applications (CVE-2018-1283) For more information about changes in this release, see: https://www.apache.org/dist/httpd/CHANGES_2.4.33 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-09-05
    plugin id 108856
    published 2018-04-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=108856
    title Fedora 27 : httpd (2018-375e3244b6)
  • NASL family Web Servers
    NASL id APACHE_2_4_30.NASL
    description According to its banner, the version of Apache running on the remote host is 2.4.x prior to 2.4.33. It is, therefore, affected by the following vulnerabilities: - An out-of-bounds write flaw exists within the derive_codepage_from_lang() function of the modules/aaa/mod_authnz_ldap.c script due to improper handling of 'Accept-Language' header values that are less than two-bytes. A remote attacker, with a specially crafted request, could potentially crash the process. (CVE-2017-15710) - A ACL bypass flaw exists within the ap_rgetline_core() function of the server/protocol.c script due to improper handling of expressions. A remote attacker could potentially bypass restrictions an upload a file. (CVE-2017-15715) - A data tampering flaw exists in the session_fixups() function of the modules/session/mod_session.c script when forwarding mod_session data to CGI applications. A remote attacker, with a specially crafted request, could potentially tamper with the mod_session data of the CGI application. (CVE-2018-1283) - An out-of-bound read flaw exists when hitting a size limit while handling HTTP headers. A remote attacker, with a specially crafted request, could crash the process. (CVE-2018-1301) - A use-after-free flaw exists when handling the HTTP/2 stream shutdown. A remote attacker could potentially write to already freed memory and crash the process. (CVE-2018-1302) - An out-of-bounds read flaw exists in the read_table() function of the modules/cache/mod_cache_socache.c script when handling empty headers. A remote attacker, with a specially crafted request, could potentially crash the process. (CVE-2018-1303) - A flaw exists within the modules/aaa/mod_auth_digest.c script due to improperly generating nonce when sending HTTP Digest Authentication challenges. A remote attacker could potentially conduct replay attacks against the server. (CVE-2018-1312) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
    last seen 2019-01-16
    modified 2018-09-13
    plugin id 108758
    published 2018-03-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=108758
    title Apache 2.4.x < 2.4.33 Multiple Vulnerabilities
  • NASL family Web Servers
    NASL id APACHE_2_4_33.NASL
    description According to its banner, the version of Apache running on the remote host is 2.4.x prior to 2.4.33. It is, therefore, affected by multiple vulnerabilities: - An out of bounds write vulnerability exists in mod_authnz_ldap with AuthLDAPCharsetConfig enabled. An unauthenticated, remote attacker can exploit this, via the Accept-Language header value, to cause the application to stop responding. (CVE-2017-15710) - An arbitrary file upload vulnerability exists in the FilesMatch component where a malicious filename can be crafted to match the expression check for a newline character. An unauthenticated, remote attacker can exploit this, via newline character, to upload arbitrary files on the remote host subject to the privileges of the user. (CVE-2017-15715) - A session management vulnerability exists in the mod_session component due to SessionEnv being enabled and forwarding it's session data to the CGI Application. An unauthenticated, remote attacker can exploit this, via tampering the HTTP_SESSION and using a session header, to influence content. (CVE-2018-1283) - An out of bounds access vulnerability exists when the size limit is reached. An unauthenticated, remote attacker can exploit this, to cause the Apache HTTP Server to crash. (CVE-2018-1301) - A write after free vulnerability exists in HTTP/2 stream due to a NULL pointer being written to an area of freed memory. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2018-1302) - An out of bounds read vulnerability exists in mod_cache_socache. An unauthenticated, remote attacker can exploit this, via a specially crafted HTTP request header to cause the application to stop responding. (CVE-2018-1303) - A weak digest vulnerability exists in the HTTP digest authentication challenge. An unauthenticated, remote attacker can exploit this in a cluster of servers configured to use a common digest authentication, to replay HTTP requests across servers without being detected. (CVE-2018-1312) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
    last seen 2019-02-10
    modified 2019-02-08
    plugin id 122060
    published 2019-02-08
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=122060
    title Apache 2.4.x < 2.4.33 Multiple Vulnerabilities
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-0901-1.NASL
    description This update for apache2 fixes the following issues : - CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a \'Session\' header leading to unexpected behavior [bsc#1086814]. - CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817] - CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813] - CVE-2017-15715: a regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files.[bsc#1086774] - CVE-2018-1312: when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. [bsc#1086775] - CVE-2017-15710: mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. [bsc#1086820] - gensslcert: fall back to 'localhost' as hostname [bsc#1057406] Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-12-01
    plugin id 108945
    published 2018-04-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=108945
    title SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:0901-1)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_F38187E72F6E11E88F07B499BAEBFEAF.NASL
    description The Apache httpd reports : Out of bound write in mod_authnz_ldap with AuthLDAPCharsetConfig enabled (CVE-2017-15710) mod_session: CGI-like applications that intend to read from mod_session's 'SessionEnv ON' could be fooled into reading user-supplied data instead. (CVE-2018-1283) mod_cache_socache: Fix request headers parsing to avoid a possible crash with specially crafted input data. (CVE-2018-1303) core: Possible crash with excessively long HTTP request headers. Impractical to exploit with a production build and production LogLevel. (CVE-2018-1301) core: Configure the regular expression engine to match '$' to the end of the input string only, excluding matching the end of any embedded newline characters. Behavior can be changed with new directive 'RegexDefaultOptions'. (CVE-2017-15715) mod_auth_digest: Fix generation of nonce values to prevent replay attacks across servers using a common Digest domain. This change may cause problems if used with round robin load balancers. (CVE-2018-1312) mod_http2: Potential crash w/ mod_http2. (CVE-2018-1302)
    last seen 2019-01-16
    modified 2018-11-10
    plugin id 108626
    published 2018-03-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=108626
    title FreeBSD : apache -- multiple vulnerabilities (f38187e7-2f6e-11e8-8f07-b499baebfeaf)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-4164.NASL
    description Several vulnerabilities have been found in the Apache HTTPD server. - CVE-2017-15710 Alex Nichols and Jakob Hirsch reported that mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, could cause an out of bound write if supplied with a crafted Accept-Language header. This could potentially be used for a Denial of Service attack. - CVE-2017-15715 Elar Lang discovered that expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are externally blocked, but only by matching the trailing portion of the filename. - CVE-2018-1283 When mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user could influence their content by using a 'Session' header. - CVE-2018-1301 Robert Swiecki reported that a specially crafted request could have crashed the Apache HTTP Server, due to an out of bound access after a size limit is reached by reading the HTTP header. - CVE-2018-1303 Robert Swiecki reported that a specially crafted HTTP request header could have crashed the Apache HTTP Server if using mod_cache_socache, due to an out of bound read while preparing data to be cached in shared memory. - CVE-2018-1312 Nicolas Daniels discovered that when generating an HTTP Digest authentication challenge, the nonce sent by mod_auth_digest to prevent replay attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.
    last seen 2019-01-16
    modified 2018-11-13
    plugin id 108816
    published 2018-04-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=108816
    title Debian DSA-4164-1 : apache2 - security update
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2018-1151.NASL
    description According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.(CVE-2017-15710) - In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename.(CVE-2017-15715) - In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.(CVE-2018-1312) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-11-13
    plugin id 110155
    published 2018-05-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=110155
    title EulerOS 2.0 SP1 : httpd (EulerOS-SA-2018-1151)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1389.NASL
    description Several vulnerabilities have been found in the Apache HTTPD server. CVE-2017-15710 Alex Nichols and Jakob Hirsch reported that mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, could cause an of bound write if supplied with a crafted Accept-Language header. This could potentially be used for a Denial of Service attack. CVE-2018-1301 Robert Swiecki reported that a specially crafted request could have crashed the Apache HTTP Server, due to an out of bound access after a size limit is reached by reading the HTTP header. CVE-2018-1312 Nicolas Daniels discovered that when generating an HTTP Digest authentication challenge, the nonce sent by mod_auth_digest to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. For Debian 7 'Wheezy', these problems have been fixed in version 2.2.22-13+deb7u13. We recommend that you upgrade your apache2 packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-08-31
    plugin id 110250
    published 2018-05-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=110250
    title Debian DLA-1389-1 : apache2 security update
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2018-1213.NASL
    description According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.(CVE-2017-15710) - In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename.(CVE-2017-15715) - In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.(CVE-2018-1312) - A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability.(CVE-2018-1303) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-11-13
    plugin id 110877
    published 2018-07-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=110877
    title EulerOS 2.0 SP3 : httpd (EulerOS-SA-2018-1213)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-1161-2.NASL
    description This update for apache2 fixes the following issues : - CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a \'Session\' header leading to unexpected behavior [bsc#1086814]. - CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817] - CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813] - CVE-2017-15715: a regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files.[bsc#1086774] - CVE-2018-1312: when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. [bsc#1086775] - CVE-2017-15710: mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. [bsc#1086820] - CVE-2018-1302: when an HTTP/2 stream was destroyed after being handled, it could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. [bsc#1086820] Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-12-01
    plugin id 118251
    published 2018-10-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118251
    title SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:1161-2)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-E6D9251471.NASL
    description This update : - fixes the **mod_md** default store directory - fixes a startup failure in certain **mod_ssl** vhost configurations ---- This update includes the latest upstream release of the Apache HTTP Server, version 2.4.33. A number of security vulnerabilities are fixed in this release : - *Low*: Possible out of bound read in mod_cache_socache (CVE-2018-1303) - *Low*: Possible out of bound access after failure in reading the HTTP request (CVE-2018-1301) - *Low*: Weak Digest auth nonce generation in mod_auth_digest (CVE-2018-1312) - *Low*: bypass with a trailing newline in the file name (CVE-2017-15715) - *Low*: Out of bound write in mod_authnz_ldap when using too small Accept-Language values (CVE-2017-15710) - *Moderate*: Tampering of mod_session data for CGI applications (CVE-2018-1283) For more information about changes in this release, see: https://www.apache.org/dist/httpd/CHANGES_2.4.33 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-09-06
    plugin id 109745
    published 2018-05-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109745
    title Fedora 26 : httpd (2018-e6d9251471)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-1079-1.NASL
    description This update for apache2 fixes the following issues : - security update : - CVE-2018-1301: Specially crafted requests, in debug mode, could lead to denial of service. [bsc#1086817] - CVE-2017-15710: failure in the language fallback handling could lead to denial of service. [bsc#1086776] - CVE-2018-1312: Seed wrongly generated could lead to replay attack in cluster environments. [bsc#1086775] Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-12-01
    plugin id 109359
    published 2018-04-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109359
    title SUSE SLES11 Security Update : apache2 (SUSE-SU-2018:1079-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3627-1.NASL
    description Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server mod_authnz_ldap module incorrectly handled missing charset encoding headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. (CVE-2017-15710) Elar Lang discovered that the Apache HTTP Server incorrectly handled certain characters specified in . A remote attacker could possibly use this issue to upload certain files, contrary to expectations. (CVE-2017-15715) It was discovered that the Apache HTTP Server mod_session module incorrectly handled certain headers. A remote attacker could possibly use this issue to influence session data. (CVE-2018-1283) Robert Swiecki discovered that the Apache HTTP Server incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to crash, leading to a denial of service. (CVE-2018-1301) Robert Swiecki discovered that the Apache HTTP Server mod_cache_socache module incorrectly handled certain headers. A remote attacker could possibly use this issue to cause the server to crash, leading to a denial of service. (CVE-2018-1303) Nicolas Daniels discovered that the Apache HTTP Server incorrectly generated the nonce when creating HTTP Digest authentication challenges. A remote attacker could possibly use this issue to replay HTTP requests across a cluster of servers. (CVE-2018-1312). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-12-01
    plugin id 109199
    published 2018-04-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109199
    title Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : apache2 vulnerabilities (USN-3627-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-1161-1.NASL
    description This update for apache2 fixes the following issues : - CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a \'Session\' header leading to unexpected behavior [bsc#1086814]. - CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817] - CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813] - CVE-2017-15715: a regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files.[bsc#1086774] - CVE-2018-1312: when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. [bsc#1086775] - CVE-2017-15710: mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. [bsc#1086820] - CVE-2018-1302: when an HTTP/2 stream was destroyed after being handled, it could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. [bsc#1086820] Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2018-12-01
    plugin id 109598
    published 2018-05-08
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109598
    title SUSE SLES12 Security Update : apache2 (SUSE-SU-2018:1161-1)
  • NASL family Amazon Linux Local Security Checks
    NASL id ALA_ALAS-2018-1004.NASL
    description Use-after-free on HTTP/2 stream shutdown When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.30 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. (CVE-2018-1302) Bypass with a trailing newline in the file name In Apache httpd 2.4.0 to 2.4.29, the expression specified in could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. This could be exploited in environments where uploads of some files are are externally blocked, but only by matching the trailing portion of the filename. (CVE-2017-15715) Out of bounds read in mod_cache_socache can allow a remote attacker to cause a denial of service A specially crafted HTTP request header could have crashed the Apache HTTP Server prior to version 2.4.30 due to an out of bound read while preparing data to be cached in shared memory. It could be used as a Denial of Service attack against users of mod_cache_socache. The vulnerability is considered as low risk since mod_cache_socache is not widely used, mod_cache_disk is not concerned by this vulnerability. (CVE-2018-1303) Improper handling of headers in mod_session can allow a remote user to modify session data for CGI applications It has been discovered that the mod_session module of Apache HTTP Server (httpd), through version 2.4.29, has an improper input validation flaw in the way it handles HTTP session headers in some configurations. A remote attacker may influence their content by using a 'Session' header. (CVE-2018-1283) Out of bound write in mod_authnz_ldap when using too small Accept-Language values In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. (CVE-2017-15710) Out of bound access after failure in reading the HTTP request A specially crafted request could have crashed the Apache HTTP Server prior to version 2.4.30, due to an out of bound access after a size limit is reached by reading the HTTP header. This vulnerability is considered very hard if not impossible to trigger in non-debug mode (both log and build level), so it is classified as low risk for common server usage. (CVE-2018-1301) Weak Digest auth nonce generation in mod_auth_digest In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. (CVE-2018-1312)
    last seen 2019-01-16
    modified 2018-08-31
    plugin id 109555
    published 2018-05-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109555
    title Amazon Linux AMI : httpd24 (ALAS-2018-1004)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-6744CA470D.NASL
    description This update includes the latest upstream release of the Apache HTTP Server, version 2.4.33. A number of security vulnerabilities are fixed in this release : - *Low*: Possible out of bound read in mod_cache_socache (CVE-2018-1303) - *Low*: Possible out of bound access after failure in reading the HTTP request (CVE-2018-1301) - *Low*: Weak Digest auth nonce generation in mod_auth_digest (CVE-2018-1312) - *Low*: bypass with a trailing newline in the file name (CVE-2017-15715) - *Low*: Out of bound write in mod_authnz_ldap when using too small Accept-Language values (CVE-2017-15710) - *Moderate*: Tampering of mod_session data for CGI applications (CVE-2018-1283) For more information about changes in this release, see: https://www.apache.org/dist/httpd/CHANGES_2.4.33 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-01-16
    modified 2019-01-03
    plugin id 120484
    published 2019-01-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=120484
    title Fedora 28 : httpd (2018-6744ca470d)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2018-438.NASL
    description This update for apache2 fixes the following issues : - CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a \'Session\' header leading to unexpected behavior [bsc#1086814]. - CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817] - CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813] - CVE-2017-15715: a regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files.[bsc#1086774] - CVE-2018-1312: when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. [bsc#1086775] - CVE-2017-15710: mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. [bsc#1086820] - CVE-2018-1302: when an HTTP/2 stream was destroyed after being handled, it could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. [bsc#1086820] This update was imported from the SUSE:SLE-12-SP2:Update update project.
    last seen 2019-01-16
    modified 2018-09-04
    plugin id 109664
    published 2018-05-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=109664
    title openSUSE Security Update : apache2 (openSUSE-2018-438)
redhat via4
advisories
rhsa
id RHSA-2018:3558
refmap via4
bid 103524
confirm
debian DSA-4164
mlist
  • [debian-lts-announce] 20180530 [SECURITY] [DLA 1389-1] apache2 security update
  • [oss-security] 20180323 CVE-2018-1312: Weak Digest auth nonce generation in mod_auth_digest
sectrack 1040571
ubuntu
  • USN-3627-1
  • USN-3627-2
Last major update 26-03-2018 - 11:29
Published 26-03-2018 - 11:29
Last modified 07-02-2019 - 06:29
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