ID CVE-2015-8325
Summary The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows local users to gain privileges by triggering a crafted environment for the /bin/login program, as demonstrated by an LD_PRELOAD environment variable.
References
Vulnerable Configurations
  • Debian Linux 7.0
    cpe:2.3:o:debian:debian_linux:7.0
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
  • OpenBSD OpenSSH 7.2 Patch 2
    cpe:2.3:a:openbsd:openssh:7.2:p2
  • Canonical Ubuntu Core 15.04
    cpe:2.3:o:canonical:ubuntu_core:15.04
  • Canonical Ubuntu Linux 12.04 LTS
    cpe:2.3:o:canonical:ubuntu_linux:12.04:-:-:-:lts
  • Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)
    cpe:2.3:o:canonical:ubuntu_linux:14.04:-:-:-:lts
  • Canonical Ubuntu Linux 15.10
    cpe:2.3:o:canonical:ubuntu_linux:15.10
  • Canonical Ubuntu Touch 15.04
    cpe:2.3:o:canonical:ubuntu_touch:15.04
CVSS
Base: 7.2 (as of 05-05-2016 - 12:04)
Impact:
Exploitability:
CWE CWE-264
CAPEC
  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
nessus via4
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-99C6BC92DF.NASL
    description Sync with openssh 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 2017-10-29
    modified 2016-10-18
    plugin id 92130
    published 2016-07-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92130
    title Fedora 24 : gsi-openssh (2016-99c6bc92df)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-CCE03CC497.NASL
    description Security fix for CVE-2015-8325: ignore PAM environment vars when UseLogin=yes. 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 2017-10-29
    modified 2016-10-18
    plugin id 92162
    published 2016-07-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92162
    title Fedora 24 : openssh (2016-cce03cc497)
  • NASL family F5 Networks Local Security Checks
    NASL id F5_BIGIP_SOL20911042.NASL
    description The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows local users to gain privileges by triggering a crafted environment for the /bin/login program, as demonstrated by an LD_PRELOAD environment variable. (CVE-2015-8325)
    last seen 2017-12-21
    modified 2017-12-21
    plugin id 105401
    published 2017-12-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105401
    title F5 Networks BIG-IP : OpenSSH vulnerability (K20911042)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3550.NASL
    description Shayan Sadigh discovered a vulnerability in OpenSSH: If PAM support is enabled and the sshd PAM configuration is configured to read userspecified environment variables and the 'UseLogin' option is enabled, a local user may escalate her privileges to root. In Debian 'UseLogin' is not enabled by default.
    last seen 2017-10-29
    modified 2016-12-06
    plugin id 90550
    published 2016-04-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90550
    title Debian DSA-3550-1 : openssh - security update
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-7F5004093E.NASL
    description Security fix for CVE-2015-8325: ignore PAM environment vars when UseLogin=yes. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2017-10-29
    modified 2016-10-18
    plugin id 90694
    published 2016-04-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=90694
    title Fedora 23 : openssh-7.2p2-3.fc23 (2016-7f5004093e)
  • NASL family Slackware Local Security Checks
    NASL id SLACKWARE_SSA_2016-219-03.NASL
    description New openssh packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues.
    last seen 2017-10-29
    modified 2016-10-19
    plugin id 92760
    published 2016-08-08
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92760
    title Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 / current : openssh (SSA:2016-219-03)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-D31C00CA51.NASL
    description Sync with openssh 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 2017-10-29
    modified 2016-10-18
    plugin id 92172
    published 2016-07-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92172
    title Fedora 23 : gsi-openssh (2016-d31c00ca51)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20161103_OPENSSH_ON_SL7_X.NASL
    description Security Fix(es) : - It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) Additional Changes :
    last seen 2017-10-29
    modified 2016-12-15
    plugin id 95851
    published 2016-12-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95851
    title Scientific Linux Security Update : openssh on SL7.x x86_64
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2016-2588.NASL
    description An update for openssh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es) : * It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
    last seen 2017-10-29
    modified 2016-11-28
    plugin id 95334
    published 2016-11-28
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95334
    title CentOS 7 : openssh (CESA-2016:2588)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0053.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - Allow to use ibmca crypto hardware (#1397547) - CVE-2015-8325: privilege escalation via user's PAM environment and UseLogin=yes (1405374) - Fix missing hmac-md5-96 from server offer (#1373836) - Prevent infinite loop when Ctrl+Z pressed at password prompt (#1218424) - Remove RC4 cipher and MD5 based MAC from the default client proposal (#1373836) - Resolve sftp force permission colision with umask (#1341747) - Relax bits needed check to allow hmac-sha2-512 with gss-group1-sha1- (#1353359) - close ControlPersist background process stderr when not in debug mode (#1335539) - Do not add a message 'The agent has no identities.' in ~/.ssh/authorized_keys (#1353410) - ssh-copy-id: SunOS does not understand ~ (#1327547)
    last seen 2017-10-29
    modified 2017-03-30
    plugin id 99080
    published 2017-03-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99080
    title OracleVM 3.3 / 3.4 : openssh (OVMSA-2017-0053)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2016-1386-1.NASL
    description This update for OpenSSH fixes three security issues. These security issues were fixed : - CVE-2016-3115: Sanitise input for xauth(1) (bsc#970632) - CVE-2016-1908: Prevent X11 SECURITY circumvention when forwarding X11 connections (bsc#962313) - CVE-2015-8325: Ignore PAM environment when using login (bsc#975865) The update package also includes non-security fixes. See advisory for details. 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 2018-02-01
    modified 2018-01-31
    plugin id 91318
    published 2016-05-25
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91318
    title SUSE SLED12 / SLES12 Security Update : openssh (SUSE-SU-2016:1386-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2016-2588.NASL
    description From Red Hat Security Advisory 2016:2588 : An update for openssh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es) : * It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
    last seen 2017-10-29
    modified 2016-12-07
    plugin id 94709
    published 2016-11-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94709
    title Oracle Linux 7 : openssh (ELSA-2016-2588)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20170321_OPENSSH_ON_SL6_X.NASL
    description Security Fix(es) : - It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325)
    last seen 2017-10-29
    modified 2017-04-06
    plugin id 99221
    published 2017-04-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99221
    title Scientific Linux Security Update : openssh on SL6.x i386/x86_64
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-668.NASL
    description This update for OpenSSH fixes three security issues. These security issues were fixed : - CVE-2016-3115: Sanitise input for xauth(1) (bsc#970632) - CVE-2016-1908: Prevent X11 SECURITY circumvention when forwarding X11 connections (bsc#962313) - CVE-2015-8325: Ignore PAM environment when using login (bsc#975865) These non-security issues were fixed : - Fix help output of sftp (bsc#945493) - Restarting openssh with openssh-fips installed was not working correctly (bsc#945484) - Fix crashes when /proc is not available in the chroot (bsc#947458) - Correctly parse GSSAPI KEX algorithms (bsc#961368) - More verbose FIPS mode/CC related documentation in README.FIPS (bsc#965576, bsc#960414) - Fix PRNG re-seeding (bsc#960414, bsc#729190) - Disable DH parameters under 2048 bits by default and allow lowering the limit back to the RFC 4419 specified minimum through an option (bsc#932483, bsc#948902) This update was imported from the SUSE:SLE-12:Update update project.
    last seen 2018-01-27
    modified 2018-01-26
    plugin id 91413
    published 2016-06-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91413
    title openSUSE Security Update : openssh (openSUSE-2016-668)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-0641.NASL
    description From Red Hat Security Advisory 2017:0641 : An update for openssh is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es) : * It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical Notes linked from the References section.
    last seen 2017-10-29
    modified 2017-03-30
    plugin id 99067
    published 2017-03-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99067
    title Oracle Linux 6 : openssh (ELSA-2017-0641)
  • NASL family Amazon Linux Local Security Checks
    NASL id ALA_ALAS-2016-770.NASL
    description It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root.
    last seen 2018-04-19
    modified 2018-04-18
    plugin id 94976
    published 2016-11-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94976
    title Amazon Linux AMI : openssh (ALAS-2016-770)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2016-2588.NASL
    description An update for openssh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es) : * It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
    last seen 2017-10-29
    modified 2017-01-10
    plugin id 94551
    published 2016-11-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94551
    title RHEL 7 : openssh (RHSA-2016:2588)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-0641.NASL
    description An update for openssh is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es) : * It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical Notes linked from the References section.
    last seen 2017-10-29
    modified 2017-03-28
    plugin id 97878
    published 2017-03-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97878
    title RHEL 6 : openssh (RHSA-2017:0641)
  • NASL family Huawei Local Security Checks
    NASL id EULEROS_SA-2016-1053.NASL
    description According to the version of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) 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 2018-06-14
    modified 2018-06-13
    plugin id 99815
    published 2017-05-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99815
    title EulerOS 2.0 SP1 : openssh (EulerOS-SA-2016-1053)
  • NASL family Misc.
    NASL id OPENSSH_73.NASL
    description According to its banner, the version of OpenSSH running on the remote host is prior to 7.3. It is, therefore, affected by multiple vulnerabilities : - A local privilege escalation when the UseLogin feature is enabled and PAM is configured to read .pam_environment files from home directories. (CVE-2015-8325) - A flaw exists that is due to the program returning shorter response times for authentication requests with overly long passwords for invalid users than for valid users. This may allow a remote attacker to conduct a timing attack and enumerate valid usernames. (CVE-2016-6210) - A denial of service vulnerability exists in the auth_password() function in auth-passwd.c due to a failure to limit password lengths for password authentication. An unauthenticated, remote attacker can exploit this, via a long string, to consume excessive CPU resources, resulting in a denial of service condition. (CVE-2016-6515) - An unspecified flaw exists in the CBC padding oracle countermeasures that allows an unauthenticated, remote attacker to conduct a timing attack. (VulnDB 142343) - A flaw exists due to improper operation ordering of MAC verification for Encrypt-then-MAC (EtM) mode transport MAC algorithms when verifying the MAC before decrypting any ciphertext. An unauthenticated, remote attacker can exploit this, via a timing attack, to disclose sensitive information. (VulnDB 142344) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
    last seen 2018-05-22
    modified 2018-05-21
    plugin id 93194
    published 2016-08-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93194
    title OpenSSH < 7.3 Multiple Vulnerabilities
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2016-2388-1.NASL
    description This update for OpenSSH fixes the following issues : - Prevent user enumeration through the timing of password processing. (bsc#989363, CVE-2016-6210) - Allow lowering the DH groups parameter limit in server as well as when GSSAPI key exchange is used. (bsc#948902) - Sanitize input for xauth(1). (bsc#970632, CVE-2016-3115) - Prevent X11 SECURITY circumvention when forwarding X11 connections. (bsc#962313, CVE-2016-1908) - Disable DH parameters under 2048 bits by default and allow lowering the limit back to the RFC 4419 specified minimum through an option. (bsc#932483, bsc#948902) - Ignore PAM environment when using login. (bsc#975865, CVE-2015-8325) - Limit the accepted password length (prevents a possible denial of service). (bsc#992533, CVE-2016-6515) - Relax version requires for the openssh-askpass sub-package. (bsc#962794) - Avoid complaining about unset DISPLAY variable. (bsc#981654) - Initialize message id to prevent connection breakups in some cases. (bsc#959096) 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 2018-02-01
    modified 2018-01-31
    plugin id 93735
    published 2016-09-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93735
    title SUSE SLES11 Security Update : openssh (SUSE-SU-2016:2388-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-2966-1.NASL
    description Shayan Sadigh discovered that OpenSSH incorrectly handled environment files when the UseLogin feature is enabled. A local attacker could use this issue to gain privileges. (CVE-2015-8325) Ben Hawkes discovered that OpenSSH incorrectly handled certain network traffic. A remote attacker could possibly use this issue to cause OpenSSH to crash, resulting in a denial of service. This issue only applied to Ubuntu 15.10. (CVE-2016-1907) Thomas Hoger discovered that OpenSSH incorrectly handled untrusted X11 forwarding when the SECURITY extension is disabled. A connection configured as being untrusted could get switched to trusted in certain scenarios, contrary to expectations. (CVE-2016-1908) It was discovered that OpenSSH incorrectly handled certain X11 forwarding data. A remote authenticated attacker could possibly use this issue to bypass certain intended command restrictions. (CVE-2016-3115). 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 2018-01-31
    modified 2018-01-30
    plugin id 91086
    published 2016-05-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91086
    title Ubuntu 12.04 LTS / 14.04 LTS / 15.10 : openssh vulnerabilities (USN-2966-1)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2016-1528-1.NASL
    description openssh was updated to fix three security issues. These security issues were fixed : - CVE-2016-3115: Multiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH allowed remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data, related to the (1) do_authenticated1 and (2) session_x11_req functions (bsc#970632). - CVE-2016-1908: Possible fallback from untrusted to trusted X11 forwarding (bsc#962313). - CVE-2015-8325: Ignore PAM environment vars when UseLogin=yes (bsc#975865). The update package also includes non-security fixes. See advisory for details. 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 2018-02-01
    modified 2018-01-31
    plugin id 91655
    published 2016-06-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=91655
    title SUSE SLES11 Security Update : openssh (SUSE-SU-2016:1528-1)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201612-18.NASL
    description The remote host is affected by the vulnerability described in GLSA-201612-18 (OpenSSH: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in OpenSSH. Please review the CVE identifiers referenced below for details. Impact : Remote attackers could cause Denial of Service and conduct user enumeration. Workaround : There is no known workaround at this time.
    last seen 2018-01-27
    modified 2018-01-26
    plugin id 95604
    published 2016-12-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95604
    title GLSA-201612-18 : OpenSSH: Multiple vulnerabilities
  • NASL family AIX Local Security Checks
    NASL id AIX_OPENSSH_ADVISORY9.NASL
    description The remote AIX host has a version of OpenSSH installed that is affected by the following vulnerabilities : - An elevation of privilege vulnerability exists in the do_setup_env() function within file session.c when handling user-supplied environmental variables. A local attacker can exploit this to gain elevated privileges by triggering a crafted environment for the /bin/login program. This vulnerability requires that the UseLogin feature is enabled and that PAM is configured to read .pam_environment files in user home directories. (CVE-2015-8325) - A flaw exists when handling authentication requests that involve overly long passwords due to returning shorter response times for requests for invalid users than for valid users. An unauthenticated, remote attacker can exploit this to enumerate valid usernames by conducting a timing attack. (CVE-2016-6210) - A denial of service vulnerability exists in the auth_password() function within auth-passwd.c due to a a failure to limit password lengths. An unauthenticated, remote attacker can exploit this, via overly long passwords, to cause the excessive consumption of CPU resources. (CVE-2016-6515)
    last seen 2018-06-12
    modified 2018-06-11
    plugin id 95477
    published 2016-12-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95477
    title AIX OpenSSH Advisory : openssh_advisory9.asc
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2017-0641.NASL
    description An update for openssh is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. OpenSSH is an SSH protocol implementation supported by a number of Linux, UNIX, and similar operating systems. It includes the core files necessary for both the OpenSSH client and server. Security Fix(es) : * It was discovered that the OpenSSH sshd daemon fetched PAM environment settings before running the login program. In configurations with UseLogin=yes and the pam_env PAM module configured to read user environment settings, a local user could use this flaw to execute arbitrary code as root. (CVE-2015-8325) Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9 Technical Notes linked from the References section.
    last seen 2017-10-29
    modified 2017-03-27
    plugin id 97955
    published 2017-03-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97955
    title CentOS 6 : openssh (CESA-2017:0641)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_ADCCEFD1708011E6A2CBC80AA9043978.NASL
    description The OpenSSH project reports : * sshd(8): Mitigate timing differences in password authentication that could be used to discern valid from invalid account names when long passwords were sent and particular password hashing algorithms are in use on the server. CVE-2016-6210, reported by EddieEzra.Harari at verint.com * sshd(8): (portable only) Ignore PAM environment vars when UseLogin=yes. If PAM is configured to read user-specified environment variables and UseLogin=yes in sshd_config, then a hostile local user may attack /bin/login via LD_PRELOAD or similar environment variables set via PAM. CVE-2015-8325, found by Shayan Sadigh.
    last seen 2017-10-29
    modified 2016-10-19
    plugin id 93267
    published 2016-09-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93267
    title FreeBSD : openssh -- sshd -- remote valid user discovery and PAM /bin/login attack (adccefd1-7080-11e6-a2cb-c80aa9043978)
redhat via4
advisories
  • bugzilla
    id 1373297
    title openssh can't be installed without selinux-policy
    oval
    AND
    • OR
      • comment Red Hat Enterprise Linux 7 Client is installed
        oval oval:com.redhat.rhsa:tst:20140675001
      • comment Red Hat Enterprise Linux 7 Server is installed
        oval oval:com.redhat.rhsa:tst:20140675002
      • comment Red Hat Enterprise Linux 7 Workstation is installed
        oval oval:com.redhat.rhsa:tst:20140675003
      • comment Red Hat Enterprise Linux 7 ComputeNode is installed
        oval oval:com.redhat.rhsa:tst:20140675004
    • OR
      • AND
        • comment openssh is earlier than 0:6.6.1p1-31.el7
          oval oval:com.redhat.rhsa:tst:20162588005
        • comment openssh is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884006
      • AND
        • comment openssh-askpass is earlier than 0:6.6.1p1-31.el7
          oval oval:com.redhat.rhsa:tst:20162588017
        • comment openssh-askpass is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884008
      • AND
        • comment openssh-clients is earlier than 0:6.6.1p1-31.el7
          oval oval:com.redhat.rhsa:tst:20162588019
        • comment openssh-clients is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884014
      • AND
        • comment openssh-keycat is earlier than 0:6.6.1p1-31.el7
          oval oval:com.redhat.rhsa:tst:20162588009
        • comment openssh-keycat is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150425012
      • AND
        • comment openssh-ldap is earlier than 0:6.6.1p1-31.el7
          oval oval:com.redhat.rhsa:tst:20162588013
        • comment openssh-ldap is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884012
      • AND
        • comment openssh-server is earlier than 0:6.6.1p1-31.el7
          oval oval:com.redhat.rhsa:tst:20162588015
        • comment openssh-server is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884016
      • AND
        • comment openssh-server-sysvinit is earlier than 0:6.6.1p1-31.el7
          oval oval:com.redhat.rhsa:tst:20162588007
        • comment openssh-server-sysvinit is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20150425016
      • AND
        • comment pam_ssh_agent_auth is earlier than 0:0.9.3-9.31.el7
          oval oval:com.redhat.rhsa:tst:20162588011
        • comment pam_ssh_agent_auth is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884010
    rhsa
    id RHSA-2016:2588
    released 2016-11-03
    severity Moderate
    title RHSA-2016:2588: openssh security, bug fix, and enhancement update (Moderate)
  • bugzilla
    id 1397547
    title SSH does not use the ibmca crypto hardware
    oval
    AND
    • OR
      • comment Red Hat Enterprise Linux 6 Client is installed
        oval oval:com.redhat.rhsa:tst:20100842001
      • comment Red Hat Enterprise Linux 6 Server is installed
        oval oval:com.redhat.rhsa:tst:20100842002
      • comment Red Hat Enterprise Linux 6 Workstation is installed
        oval oval:com.redhat.rhsa:tst:20100842003
      • comment Red Hat Enterprise Linux 6 ComputeNode is installed
        oval oval:com.redhat.rhsa:tst:20100842004
    • OR
      • AND
        • comment openssh is earlier than 0:5.3p1-122.el6
          oval oval:com.redhat.rhsa:tst:20170641011
        • comment openssh is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884006
      • AND
        • comment openssh-askpass is earlier than 0:5.3p1-122.el6
          oval oval:com.redhat.rhsa:tst:20170641007
        • comment openssh-askpass is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884008
      • AND
        • comment openssh-clients is earlier than 0:5.3p1-122.el6
          oval oval:com.redhat.rhsa:tst:20170641013
        • comment openssh-clients is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884014
      • AND
        • comment openssh-ldap is earlier than 0:5.3p1-122.el6
          oval oval:com.redhat.rhsa:tst:20170641005
        • comment openssh-ldap is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884012
      • AND
        • comment openssh-server is earlier than 0:5.3p1-122.el6
          oval oval:com.redhat.rhsa:tst:20170641015
        • comment openssh-server is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884016
      • AND
        • comment pam_ssh_agent_auth is earlier than 0:0.9.3-122.el6
          oval oval:com.redhat.rhsa:tst:20170641009
        • comment pam_ssh_agent_auth is signed with Red Hat redhatrelease2 key
          oval oval:com.redhat.rhsa:tst:20120884010
    rhsa
    id RHSA-2017:0641
    released 2017-03-21
    severity Moderate
    title RHSA-2017:0641: openssh security and bug fix update (Moderate)
rpms
  • openssh-0:6.6.1p1-31.el7
  • openssh-askpass-0:6.6.1p1-31.el7
  • openssh-clients-0:6.6.1p1-31.el7
  • openssh-keycat-0:6.6.1p1-31.el7
  • openssh-ldap-0:6.6.1p1-31.el7
  • openssh-server-0:6.6.1p1-31.el7
  • openssh-server-sysvinit-0:6.6.1p1-31.el7
  • pam_ssh_agent_auth-0:0.9.3-9.31.el7
  • openssh-0:5.3p1-122.el6
  • openssh-askpass-0:5.3p1-122.el6
  • openssh-clients-0:5.3p1-122.el6
  • openssh-ldap-0:5.3p1-122.el6
  • openssh-server-0:5.3p1-122.el6
  • pam_ssh_agent_auth-0:0.9.3-122.el6
refmap via4
bid 86187
confirm
debian DSA-3550
gentoo GLSA-201612-18
sectrack 1036487
Last major update 30-11-2016 - 22:01
Published 30-04-2016 - 21:59
Last modified 04-01-2018 - 21:30
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