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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1043 sol93532943: SSHD session.c vulnerability CVE-2016-3115 29 April 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP F5 BIG-IQ F5 Enterprise Manager F5 Traffix SDC Publisher: F5 Networks Operating System: Network Appliance Virtualisation Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2016-3115 Reference: ESB-2016.0670.2 Original Bulletin: https://support.f5.com/kb/en-us/solutions/public/k/93/sol93532943.html - --------------------------BEGIN INCLUDED TEXT-------------------- sol93532943: SSHD session.c vulnerability CVE-2016-3115 Security Advisory Original Publication Date: 04/27/2016 Vulnerability Description Multiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH before 7.2p2 allow 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. (CVE-2016-3115) Impact Remote users may have the ability to read arbitrary files by using the authenticated user's privilege. Security Issue Status F5 Product Development has assigned ID 583678 (BIG-IP), ID 584222 (Enterprise Manager), ID 584220 (BIG-IQ), INSTALLER-2306 (Traffix SDC), and LRS-60665 (LineRate) to this vulnerability, and has evaluated the currently supported releases for potential vulnerability. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases or hotfixes that address the vulnerability, refer to the following table: Product Versions known to be vulnerable Versions known to be not vulnerable Severity Vulnerable component or feature BIG-IP LTM 12.0.0 None Medium OpenSSH * 11.0.0 - 11.6.0 10.1.0 - 10.2.4 BIG-IP AAM 12.0.0 None Medium OpenSSH * 11.4.0 - 11.6.0 BIG-IP AFM 12.0.0 None Medium OpenSSH * 11.3.0 - 11.6.0 BIG-IP Analytics 12.0.0 None Medium OpenSSH * 11.0.0 - 11.6.0 BIG-IP APM 12.0.0 None Medium OpenSSH * 11.0.0 - 11.6.0 10.1.0 - 10.2.4 BIG-IP ASM 12.0.0 None Medium OpenSSH * 11.0.0 - 11.6.0 10.1.0 - 10.2.4 BIG-IP DNS 12.0.0 None Medium OpenSSH * BIG-IP Edge Gateway 11.0.0 - 11.3.0 None Medium OpenSSH * 10.1.0 - 10.2.4 BIG-IP GTM 11.0.0 - 11.6.0 None Medium OpenSSH * 10.1.0 - 10.2.4 BIG-IP Link Controller 12.0.0 None Medium OpenSSH * 11.0.0 - 11.6.0 10.1.0 - 10.2.4 BIG-IP PEM 12.0.0 None Medium OpenSSH * 11.3.0 - 11.6.0 BIG-IP PSM 11.0.0 - 11.4.1 None Medium OpenSSH * 10.1.0 - 10.2.4 BIG-IP WebAccelerator 11.0.0 - 11.3.0 None Medium OpenSSH * 10.1.0 - 10.2.4 BIG-IP WOM 11.0.0 - 11.3.0 None Medium OpenSSH * 10.1.0 - 10.2.4 ARX None 6.0.0 - 6.4.0 Not vulnerable None Enterprise Manager 3.0.0 - 3.1.1 None Medium OpenSSH * FirePass None 7.0.0 Not vulnerable None 6.0.0 - 6.1.0 BIG-IQ Cloud 4.0.0 - 4.5.0 None Medium OpenSSH * BIG-IQ Device 4.2.0 - 4.5.0 None Medium OpenSSH * BIG-IQ Security 4.0.0 - 4.5.0 None Medium OpenSSH * BIG-IQ ADC 4.5.0 None Medium OpenSSH * BIG-IQ Centralized Management 4.6.0 None Medium OpenSSH * BIG-IQ Cloud and Orchestration 1.0.0 None Medium OpenSSH * LineRate 2.5.0 - 2.6.1 None Low OpenSSH F5 WebSafe None 1.0.0 Not vulnerable None Traffix SDC 4.0.0 - 4.4.0 None Low OpenSSH 3.3.2 - 3.5.1 * The affected versions ship with vulnerable code, but do not enable the code by default. The X11Forwarding option is not enabled unless explicitly enabled by an administrator. Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. F5 responds to vulnerabilities in accordance with the Severity values published in the previous table. The Severity values and other security vulnerability parameters are defined in SOL4602: Overview of the F5 security vulnerability response policy. To mitigate this vulnerability, you can ensure that the X11Forwarding option is absent, commented out, or set to "no" in the sshd_config configuration file. Additionally you may restrict remote access to the sshd TCP port 22 to trusted networks only. Impact of action: Performing the suggested mitigations should not have a negative impact on your system. Supplemental Information SOL9970: Subscribing to email notifications regarding F5 products SOL9957: Creating a custom RSS feed to view new and updated documents SOL4918: Overview of the F5 critical issue hotfix policy SOL167: Downloading software and firmware from F5 SOL13123: Managing BIG-IP product hotfixes (11.x - 12.x) SOL10025: Managing BIG-IP product hotfixes (10.x) SOL9502: BIG-IP hotfix matrix SOL15106: Managing BIG-IQ product hotfixes SOL15113: BIG-IQ hotfix matrix - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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