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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0530.2 K22216037: TMM vulnerability CVE-2016-9245 9 March 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-9245 Original Bulletin: https://support.f5.com/csp/article/K22216037 Revision History: March 9 2017: Additional vulnerable configuration information provided February 27 2017: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K22216037: TMM vulnerability CVE-2016-9245 Security Advisory Original Publication Date: Feb 24, 2017 Updated Date: Mar 03, 2017 Applies to (see versions): Vulnerability Description Malicious requests made to virtual servers with an HTTP profile can cause the TMM to restart. The issue is exposed with BIG-IP APM profiles, regardless of settings. The issue is also exposed with the non-default "Normalize URI" configuration options used in iRules and/or BIG-IP LTM policies. (CVE-2016-9245) Impact An attacker may be able to disrupt traffic or cause the BIG-IP system to fail over to another device in the device group. This vulnerability affects systems with any of the following configurations: A virtual server associated with a BIG-IP APM profile A virtual server associated with an HTTP profile, and a local traffic policy that has a rule condition that is composed of the HTTP URI and the Use normalized URI options enabled (the Use normalized URI option is disabled by default). The following example configuration snippet shows the local traffic policy affected by this vulnerability: ltm policy /Common/K22216037 { requires { http } rules { vulnerable { conditions { 0 { http-uri path normalized values { /exploitable } } } } } strategy /Common/first-match } A virtual server associated with an HTTP profile and an iRule using any of the following iRule commands with the -normalized switch: HTTP::uri HTTP::query HTTP::path For example: when HTTP_REQUEST { if { ([HTTP::uri -normalized] starts_with "/exploitable")} { log local0.error "K22216037 URI example" } elseif { ([HTTP::query -normalized] starts_with "/exploitable")} { log local0.error "K22216037 Query example" } elseif { ([HTTP::path -normalized] starts_with "/exploitable")} { log local0.error "K22216037 Path example" } } Security Issue Status F5 Product Development has assigned ID 628836 (BIG-IP) to this 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 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 11.2.1 BIG-IP AAM 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 11.2.1 BIG-IP AFM 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 BIG-IP Analytics 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 11.2.1 BIG-IP APM 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 11.2.1 BIG-IP ASM 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 11.2.1 BIG-IP DNS 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 BIG-IP Edge Gateway None 11.2.1 Not vulnerable1 None BIG-IP GTM None 11.4.0 - 11.6.1 11.2.1 Not vulnerable1 None BIG-IP Link Controller 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 11.2.1 BIG-IP PEM 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.4.0 - 11.6.1 BIG-IP PSM None 11.4.0 - 11.4.1 Not vulnerable1 None BIG-IP WebAccelerator None 11.2.1 Not vulnerable1 None BIG-IP WebSafe 12.1.0 - 12.1.2 13.0.0 High TMM 12.0.0 11.6.0 - 11.6.1 ARX None 6.2.0 - 6.4.0 Not vulnerable None Enterprise Manager None 3.1.1 Not vulnerable None BIG-IQ Cloud None 4.0.0 - 4.5.0 Not vulnerable1 None BIG-IQ Device None 4.2.0 - 4.5.0 Not vulnerable1 None BIG-IQ Security None 4.0.0 - 4.5.0 Not vulnerable1 None BIG-IQ ADC None 4.5.0 Not vulnerable1 None BIG-IQ Centralized Management None 5.0.0 - 5.1.0 Not vulnerable1 None 4.6.0 BIG-IQ Cloud and Orchestration None 1.0.0 Not vulnerable1 None F5 iWorkflow None 2.0.0 - 2.0.2 Not vulnerable1 None LineRate None 2.5.0 - 2.6.1 Not vulnerable None Traffix SDC None 5.0.0 - 5.1.0 Not vulnerable None 4.0.0 - 4.4.0 1 The specified products contain the affected code. However, F5 identifies the vulnerability status as Not vulnerable because the attacker cannot exploit the code in default, standard, or recommended configurations. 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. Mitigation None Supplemental Information K9970: Subscribing to email notifications regarding F5 products K9957: Creating a custom RSS feed to view new and updated documents K4602: Overview of the F5 security vulnerability response policy K4918: Overview of the F5 critical issue hotfix policy K167: Downloading software and firmware from F5 K13123: Managing BIG-IP product hotfixes (11.x - 12.x) K9502: BIG-IP 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. 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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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWMC1K4x+lLeg9Ub1AQgvuhAArQ27WKPbCVLOn6elq4lxa4su9antqS9g Oif7y0UuM49s73wV4N3+J3/rXY+tfze93kK2IbjUcyIs2fHyrQUqJVEZK58lf8kw iJ2hicJR9ku3SmORxJhsUvcOrD5awS9/v0HHrZxIcudXQ6tEf7NXL7tLsBJBsdDE 0l6DI93V6RBgXEH29s3McIlBHgut2o4Mw08/d5/ri8w7aGYmhDSFnoCTlJo40Tt2 WZQc64yTD6rjSM6WaNF2w8Aj0oXcblqe2wDCB41JResDCQdlIuF2UVMb6S7ujuRR uvj/yAdogZ1QdKJP7hc1H+4QTg1hrpr3luWy2c6qVvkIpVrTkSJ0U2Hbn6MW9fjm 4LRGV/QKAE7mhPxaOB9tMb3G9rz4AzPTWhk9oYdAyekr8Hm3y9N0Xayqs3rlOoWH UsZxCbcJcEFLfyE9C0EzeM5fDho1r+ev75J4XUwNHGm7mElopsWs7eeCgTj0lc4i LTzvPUSzAiQdFbm/pTknGypinTWO2CPffYfht1kn3z8F9EwYm3XFmRdTy8yO7yFI NEmBVdI+BoXncVZqUAlAjK6AOlTv1fkvAzB4GTwtDozaG0lAotF3ExfFr3B71ITM j5Ph9+WWJBfrFhb4ggzObUAPpJFFD0pL8qFICABQvlO4x2sQS2wK+PvkfbkxMD+m 0Wk4JU9bsHE= =gk9g -----END PGP SIGNATURE-----