ID CVE-2005-1268
Summary Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
References
Vulnerable Configurations
  • Apache Software Foundation Apache HTTP Server
    cpe:2.3:a:apache:http_server
CVSS
Base: 5.0 (as of 05-08-2005 - 21:12)
Impact:
Exploitability:
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
nessus via4
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-805.NASL
    description Several problems have been discovered in Apache2, the next generation, scalable, extendable web server. The Common Vulnerabilities and Exposures project identifies the following problems : - CAN-2005-1268 Marc Stern discovered an off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback. When Apache is configured to use a CRL this can be used to cause a denial of service. - CAN-2005-2088 A vulnerability has been discovered in the Apache web server. When it is acting as an HTTP proxy, it allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct cross-site scripting attacks, which causes Apache to incorrectly handle and forward the body of the request. - CAN-2005-2700 A problem has been discovered in mod_ssl, which provides strong cryptography (HTTPS support) for Apache that allows remote attackers to bypass access restrictions. - CAN-2005-2728 The byte-range filter in Apache 2.0 allows remote attackers to cause a denial of service via an HTTP header with a large Range field.
    last seen 2019-02-21
    modified 2018-07-20
    plugin id 19612
    published 2005-09-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=19612
    title Debian DSA-805-1 : apache2 - several vulnerabilities
  • NASL family HP-UX Local Security Checks
    NASL id HPUX_PHSS_34123.NASL
    description s700_800 11.04 Virtualvault 4.7 OWS (Apache 2.x) update : Potential security vulnerabilities have been identified with Apache running on HP-UX. These vulnerability could be exploited remotely to allow execution of arbitrary code, Denial of Service (DoS), or unauthorized access.
    last seen 2019-02-21
    modified 2018-07-12
    plugin id 21107
    published 2006-03-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=21107
    title HP-UX PHSS_34123 : Apache-based Web Server on HP-UX mod_ssl, proxy_http, Remote Execution of Arbitrary Code, Denial of Service (DoS), and Unauthorized Access (HPSBUX02074 SSRT051251 rev.2)
  • NASL family HP-UX Local Security Checks
    NASL id HPUX_PHSS_34163.NASL
    description s700_800 11.04 Webproxy server 2.1 (Apache 2.x) update : Potential security vulnerabilities have been identified with Apache running on HP-UX. These vulnerability could be exploited remotely to allow execution of arbitrary code, Denial of Service (DoS), or unauthorized access.
    last seen 2019-02-21
    modified 2018-07-12
    plugin id 21108
    published 2006-03-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=21108
    title HP-UX PHSS_34163 : Apache-based Web Server on HP-UX mod_ssl, proxy_http, Remote Execution of Arbitrary Code, Denial of Service (DoS), and Unauthorized Access (HPSBUX02074 SSRT051251 rev.2)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2005-582.NASL
    description Updated Apache httpd packages to correct two security issues are now available for Red Hat Enterprise Linux 3 and 4. This update has been rated as having moderate security impact by the Red Hat Security Response Team. The Apache HTTP Server is a powerful, full-featured, efficient, and freely-available Web server. Watchfire reported a flaw that occured when using the Apache server as an HTTP proxy. A remote attacker could send an HTTP request with both a 'Transfer-Encoding: chunked' header and a 'Content-Length' header. This caused Apache to incorrectly handle and forward the body of the request in a way that the receiving server processes it as a separate HTTP request. This could allow the bypass of Web application firewall protection or lead to cross-site scripting (XSS) attacks. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2005-2088 to this issue. Marc Stern reported an off-by-one overflow in the mod_ssl CRL verification callback. In order to exploit this issue the Apache server would need to be configured to use a malicious certificate revocation list (CRL). The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2005-1268 to this issue. Users of Apache httpd should update to these errata packages that contain backported patches to correct these issues.
    last seen 2019-02-21
    modified 2018-11-27
    plugin id 19296
    published 2005-07-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=19296
    title RHEL 3 / 4 : httpd (RHSA-2005:582)
  • NASL family Mandriva Local Security Checks
    NASL id MANDRAKE_MDKSA-2005-129.NASL
    description Marc Stern reported an off-by-one overflow in the mod_ssl CRL verification callback which can only be exploited if the Apache server is configured to use a malicious certificate revocation list (CVE-2005-1268). Watchfire reported a flaw that occured when using the Apache server as a HTTP proxy. A remote attacker could send an HTTP request with both a 'Transfer-Encoding: chunked' header and a 'Content-Length' header which would cause Apache to incorrectly handle and forward the body of the request in a way that the receiving server processed it as a separate HTTP request. This could be used to allow the bypass of web application firewall protection or lead to cross-site scripting (XSS) attacks (CVE-2005-2088). The updated packages have been patched to prevent these issues.
    last seen 2019-02-21
    modified 2018-12-05
    plugin id 19889
    published 2005-10-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=19889
    title Mandrake Linux Security Advisory : apache2 (MDKSA-2005:129)
  • NASL family Web Servers
    NASL id APACHE_2_0_55.NASL
    description The remote host appears to be running a version of Apache that is prior to 2.0.55. It is, therefore affected by multiple vulnerabilities : - A security issue exists where 'SSLVerifyClient' is not enforced in per-location context if 'SSLVerifyClient optional' is configured in the vhost configuration. (CVE-2005-2700) - A denial of service vulnerability exists when processing a large byte range request, as well as a flaw in the 'worker.c' module which could allow an attacker to force this service to consume excessive amounts of memory. (CVE-2005-2970) - When Apache is acting as a proxy, it is possible for a remote attacker to poison the web cache, bypass web application firewall protection, and conduct cross-site scripting attacks via an HTTP request with both a 'Transfer-Encoding: chunked' header and a 'Content-Length' header. (CVE-2005-2088) - Multiple integer overflows exists in PCRE in quantifier parsing which could be triggered by a local user through use of a specially crafted regex in an .htaccess file. (CVE-2005-2491) - An issue exists where the byte range filter buffers responses into memory. (CVE-2005-2728) - An off-by-one overflow exists in mod_ssl while printing CRL information at 'LogLevel debug' which could be triggered if configured to use a 'malicious CRL'. (CVE-2005-1268)
    last seen 2019-02-21
    modified 2018-06-29
    plugin id 31656
    published 2008-03-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=31656
    title Apache < 2.0.55 Multiple Vulnerabilities
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-160-1.NASL
    description Marc Stern discovered a buffer overflow in the SSL module's certificate revocation list (CRL) handler. If Apache is configured to use a malicious CRL, this could possibly lead to a server crash or arbitrary code execution with the privileges of the Apache web server. (CAN-2005-1268) Watchfire discovered that Apache insufficiently verified the 'Transfer-Encoding' and 'Content-Length' headers when acting as an HTTP proxy. By sending a specially crafted HTTP request, a remote attacker who is authorized to use the proxy could exploit this to bypass web application firewalls, poison the HTTP proxy cache, and conduct cross-site scripting attacks against other proxy users. (CAN-2005-2088). 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 2019-02-21
    modified 2019-01-02
    plugin id 20565
    published 2006-01-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=20565
    title Ubuntu 4.10 / 5.04 : apache2 vulnerabilities (USN-160-1)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_E936D612253F11DABC01000E0C2E438A.NASL
    description Marc Stern reports an off-by-one vulnerability in within mod_ssl. The vulnerability lies in mod_ssl's Certificate Revocation List (CRL). If Apache is configured to use a CRL this could allow an attacker to crash a child process causing a Denial of Service.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 21529
    published 2006-05-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=21529
    title FreeBSD : apache -- Certificate Revocation List (CRL) off-by-one vulnerability (e936d612-253f-11da-bc01-000e0c2e438a)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2005-582.NASL
    description Updated Apache httpd packages to correct two security issues are now available for Red Hat Enterprise Linux 3 and 4. This update has been rated as having moderate security impact by the Red Hat Security Response Team. The Apache HTTP Server is a powerful, full-featured, efficient, and freely-available Web server. Watchfire reported a flaw that occured when using the Apache server as an HTTP proxy. A remote attacker could send an HTTP request with both a 'Transfer-Encoding: chunked' header and a 'Content-Length' header. This caused Apache to incorrectly handle and forward the body of the request in a way that the receiving server processes it as a separate HTTP request. This could allow the bypass of Web application firewall protection or lead to cross-site scripting (XSS) attacks. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2005-2088 to this issue. Marc Stern reported an off-by-one overflow in the mod_ssl CRL verification callback. In order to exploit this issue the Apache server would need to be configured to use a malicious certificate revocation list (CRL). The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2005-1268 to this issue. Users of Apache httpd should update to these errata packages that contain backported patches to correct these issues.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 21843
    published 2006-07-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=21843
    title CentOS 3 / 4 : httpd (CESA-2005:582)
oval via4
  • accepted 2006-01-25T07:30:00.000-04:00
    class vulnerability
    contributors
    name Robert L. Hollis
    organization ThreatGuard, Inc.
    description Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
    family unix
    id oval:org.mitre.oval:def:1346
    status accepted
    submitted 2005-11-30T12:00:00.000-04:00
    title Apache mod_ssl CRL off-by-one DoS
    version 32
  • accepted 2007-10-02T08:08:10.523-04:00
    class vulnerability
    contributors
    • name Robert L. Hollis
      organization ThreatGuard, Inc.
    • name Todd Dolinsky
      organization Opsware, Inc.
    description Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
    family unix
    id oval:org.mitre.oval:def:1714
    status accepted
    submitted 2006-03-18T07:24:00.000-04:00
    title VirusVault Off-by-One Error in mod_ssl CRL
    version 31
  • accepted 2007-10-02T08:08:10.805-04:00
    class vulnerability
    contributors
    • name Robert L. Hollis
      organization ThreatGuard, Inc.
    • name Todd Dolinsky
      organization Opsware, Inc.
    description Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
    family unix
    id oval:org.mitre.oval:def:1747
    status accepted
    submitted 2006-03-18T07:24:00.000-04:00
    title Webproxy Off-by-One Error in mod_ssl CRL
    version 31
  • accepted 2013-04-29T04:20:28.525-04:00
    class vulnerability
    contributors
    • name Aharon Chernin
      organization SCAP.com, LLC
    • name Dragos Prisaca
      organization G2, Inc.
    definition_extensions
    • comment The operating system installed on the system is Red Hat Enterprise Linux 3
      oval oval:org.mitre.oval:def:11782
    • comment CentOS Linux 3.x
      oval oval:org.mitre.oval:def:16651
    • comment The operating system installed on the system is Red Hat Enterprise Linux 4
      oval oval:org.mitre.oval:def:11831
    • comment CentOS Linux 4.x
      oval oval:org.mitre.oval:def:16636
    • comment Oracle Linux 4.x
      oval oval:org.mitre.oval:def:15990
    description Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
    family unix
    id oval:org.mitre.oval:def:9589
    status accepted
    submitted 2010-07-09T03:56:16-04:00
    title Off-by-one error in the mod_ssl Certificate Revocation List (CRL) verification callback in Apache, when configured to use a CRL, allows remote attackers to cause a denial of service (child process crash) via a CRL that causes a buffer overflow of one null byte.
    version 23
redhat via4
advisories
rhsa
id RHSA-2005:582
refmap via4
bid 14366
confirm http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm
debian DSA-805
hp
  • HPSBUX02074
  • SSRT051251
mandrake MDKSA-2005:129
misc https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=163013
secunia
  • 19072
  • 19185
sreason 604
sunalert 102198
suse
  • SUSE-SA:2005:046
  • SUSE-SR:2005:018
trustix TSLSA-2005-0059
vupen ADV-2006-0789
statements via4
contributor Mark J Cox
lastmodified 2008-07-02
organization Apache
statement Fixed in Apache HTTP Server 2.0.55: http://httpd.apache.org/security/vulnerabilities_20.html
Last major update 07-03-2011 - 21:21
Published 05-08-2005 - 00:00
Last modified 19-10-2018 - 11:31
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