26 September 2014
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.1671 sol15629: GNU Bash vulnerabilities CVE-2014-6271 and CVE-2014-7169 26 September 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-7169 CVE-2014-6271 Reference: ESB-2014.1670 ESB-2014.1669 ESB-2014.1668 ESB-2014.1660 ESB-2014.1659 ESB-2014.1657 Original Bulletin: http://support.f5.com/kb/en-us/solutions/public/15000/600/sol15629.html - --------------------------BEGIN INCLUDED TEXT-------------------- sol15629: GNU Bash vulnerabilities CVE-2014-6271 and CVE-2014-7169 Security Advisory Original Publication Date: 09/25/2014 Updated Date: 09/25/2014 Description CVE-2014-6271 GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. CVE-2014-7169 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271. Impact These vulnerabilities may allow authenticated users to gain knowledge of sensitive information, manipulate certain data, or remotely execute code. Status F5 Product Development has assigned ID 480931 (BIG-IP) and ID 481070 (ARX) 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 Versions known to Vulnerable component be vulnerable be not vulnerable or feature BIG-IP LTM 11.0.0 - 11.6.0 10.0.0 - 10.2.4 None Bash shell BIG-IP AAM 11.4.0 - 11.6.0 None Bash shell BIG-IP AFM 11.3.0 - 11.6.0 None Bash shell BIG-IP Analytics 11.0.0 - 11.6.0 None Bash shell BIG-IP APM 11.0.0 - 11.6.0 10.1.0 - 10.2.4 None Bash shell BIG-IP ASM 11.0.0 - 11.6.0 10.0.0 - 10.2.4 None Bash shell BIG-IP Edge Gateway 11.0.0 - 11.3.0 10.1.0 - 10.2.4 None Bash shell BIG-IP GTM 11.0.0 - 11.6.0 10.0.0 - 10.2.4 None Bash shell BIG-IP Link Controller 11.0.0 - 11.6.0 10.0.0 - 10.2.4 None Bash shell BIG-IP PEM 11.3.0 - 11.6.0 None Bash shell BIG-IP PSM 11.0.0 - 11.4.1 10.0.0 - 10.2.4 None Bash shell BIG-IP WebAccelerator 11.0.0 - 11.3.0 10.0.0 - 10.2.4 None Bash shell BIG-IP WOM 11.0.0 - 11.3.0 10.0.0 - 10.2.4 None Bash shell ARX 6.0.0 - 6.4.0 None Bash shell Enterprise Manager ** ** ** FirePass None 7.0.0 6.0.0 - 6.1.0 None BIG-IQ Cloud ** ** ** BIG-IQ Device ** ** ** BIG-IQ Security ** ** ** LineRate None 2.4.0 - 2.4.1 2.3.0 - 2.3.1 2.2.0 - 2.2.4 1.6.0 - 1.6.3 None **Confirmation of vulnerability or non-vulnerability is not presently available. F5 is still researching the issue for the products indicated, and will update this article as soon as the information has been confirmed. Recommended action If the previous table lists a version in the Versions known to be not vulnerable column, you can eliminate this vulnerability by upgrading to the listed version. If the table does not list any version in the column, then no upgrade candidate currently exists. To mitigate this vulnerability, you should permit access to the BIG-IP Configuration utility only over a secure network and limit login access to trusted users. For additional information, refer to the links in the following Supplemental Information section. Supplemental Information DevCentral: Shellshock mitigation with BIG-IP iRules Note: A DevCentral login is required to access this content. DevCentral: CVE-2014-6271 Shellshocked Note: A DevCentral login is required to access this content. DevCentral: Shellshock mitigation with LineRate Proxy Note: A DevCentral login is required to access this content. SOL9970: Subscribing to email notifications regarding F5 products SOL9957: Creating a custom RSS feed to view new and updated documents SOL4602: Overview of the F5 security vulnerability response policy SOL4918: Overview of the F5 critical issue hotfix policy SOL167: Downloading software and firmware from F5 SOL13309: Restricting access to the Configuration utility by source IP address (11.x) SOL7448: Restricting access to the Configuration utility by source IP address (9.x - 10.x) SOL13092: Overview of securing access to the BIG-IP system - --------------------------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 email@example.com 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: firstname.lastname@example.org 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVCTI9BLndAQH1ShLAQI94Q/+PSRCFucerwRxFNKC1R2uj/RS3KcGCnC2 cZv3ZDl2oUAjAqVDz6Skkmd3QeLnLuAgzsi1yCWwMCJRgOm5Rp90a7g/wPHeuH48 e3q7oaHJtaqgRnifkW5j5ifYOY5HE6JhkHtVe6fna5jxvNSeD7CfSl9J/O82sXjT GhU3p5+cFgJ8W1A9hnLk4c+m15QfIhFcujPaRYu8/3kXxEloq/hrXrWIjss3Y1HV fXM9ob75QayRb2BKgkx4SSJUB7+jpek8n69yf8LqvSGWzcTNJNKvC0lK5AAnrIPc +DHUhucgG864DPxgm16QjErzEJub5syFsFCiMXAitn4bR8HXHQBIvQ9jUAhipa1B nDo41T7NESVg5knayKEgM175EMqRL8R3QLv5VLPiTVnw2xkFBQD3rYVJO+cMmfPi eAkuPcyJKxNsbmlm0ZLhFcDbAROquH7k9zOm6Mei02EtntnKBvQGtvv+XFxmm0VT yed6LlD2Fr8/j/zifLgIGQv1G1sMBv4aEcEjqPPOBNcMpFd2W5+WaorPXasvibOf jSoYmmEwCrIZhOgMb6bruuFtPMUHAYV3XeSVXFfJW58wSNXimjWZIawG9XtzDYur mYBPIifSUcc99V6wUweYCxmKOe03kYu9ygzbFHpQuLVYOGW81BMrWrdFF8jlnmuK Rp3hyKAAq7E= =qyu+ -----END PGP SIGNATURE-----