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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1919.3 Privilege escalation vulnerability found in F5 products 26 July 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP products F5 ARX F5 Enterprise Manager F5 BIG-IQ products F5 iWorkflow F5 Traffix SDC Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Increased Privileges -- Existing Account Resolution: Mitigation CVE Names: CVE-2017-6001 Reference: ESB-2018.1797 ESB-2017.2075 ESB-2017.1808 Original Bulletin: https://support.f5.com/csp/article/K24578092 Revision History: July 26 2019: Updated Security Advisory Status Table July 10 2018: Added Heuristic H24578092. July 3 2018: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K24578092:Linux kernel vulnerability CVE-2017-6001 Security Advisory Original Publication Date: 03 Jul, 2018 Latest Publication Date: 26 Jul, 2019 Security Advisory Description Race condition in kernel/events/core.c in the Linux kernel before 4.9.7 allows local users to gain privileges via a crafted application that makes concurrent perf_event_open system calls for moving a software group into a hardware context. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6786. (CVE-2017-6001) Impact An authenticated attacker may be able to gain an escalation of privileges through a crafted application. Security Advisory Status F5 Product Development has assigned ID 726407 (BIG-IP), ID 726456 (BIG-IQ), ID 726454 (Enterprise Manager), and CPF-24921 and CPF-24922 (Traffix) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic H24578092 on the Diagnostics > Identified > Medium page. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. 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. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |None |15.0.0 | | | | | +------+----------+----------+ | | | | |14.x |14.0.0 - |None | | | | |BIG-IP (LTM, AAM, | |14.1.0 | | | | | |AFM, Analytics, +------+----------+----------+ | | | |APM, ASM, DNS, Edge|13.x |13.0.0 - |None | | |Linux | |Gateway, FPS, GTM, | |13.1.1 | |Medium |6.4 |kernel | |Link Controller, +------+----------+----------+ | | | |PEM, |12.x |12.1.0 - |None | | | | |WebAccelerator) | |12.1.4 | | | | | | +------+----------+----------+ | | | | |11.x |11.2.1 - |None | | | | | | |11.6.4 | | | | | +-------------------+------+----------+----------+----------+------+----------+ |ARX |6.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |3.1.1 |None |Medium |6.4 |Linux | | | | | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ | |6.x |6.0.0 - |None | | | | | | |6.1.0 | | | | | |BIG-IQ Centralized +------+----------+----------+ | |Linux | |Management |5.x |5.0.0 - |None |Medium |6.4 |kernel | | | |5.4.0 | | | | | | +------+----------+----------+ | | | | |4.x |4.6.0 |None | | | | +-------------------+------+----------+----------+----------+------+----------+ |BIG-IQ Cloud and |1.x |1.0.0 |None |Medium |6.4 |Linux | |Orchestration | | | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ |F5 iWorkflow |2.x |2.1.0 - |None |Medium |6.4 |Linux | | | |2.3.0 | | | |kernel | +-------------------+------+----------+----------+----------+------+----------+ | |5.x |5.0.0 - |None | | | | |Traffix SDC | |5.1.0 | |High |7.0 |Linux | | +------+----------+----------+ | |kernel | | |4.x |4.4.0 |None | | | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Security Advisory 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 Fixes introduced in 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 To mitigate this vulnerability for affected F5 products, you should permit management access to F5 products only over a secure network and limit shell access to only trusted users. For more information about securing access to BIG-IP and Enterprise Manager systems, refer to K13309: Restricting access to the Configuration utility by source IP address (11.x - 15.x) and K13092: Overview of securing access to the BIG-IP system. Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 15.x) o K15106: Managing BIG-IQ product hotfixes o K15113: BIG-IQ hotfix matrix o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents o K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems - --------------------------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: https://www.auscert.org.au/bulletins/ =========================================================================== 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 iQIVAwUBXTqJPGaOgq3Tt24GAQhp3BAAvBroLUfUMJ2P1jicEUK+FBxjfPu5BkI/ M4+QGjjKXs+Upth43U9OR9XmXAT5p0CpqDq43IJAS1Gdxg7UMcdlCap+wRhqFt1a LFzyRkDNZMUtocqG98cbEoOD8mlKZ45TcHlR4GndhDVBFDIWjXTRIU73vEOF0P8+ F5XN7Bm+PZ4gRIlrtaXm30yHinObsNhaZwObY11ethRKf0fmklUTENLc9TzuAYxX fBBoB0J95r/wzaPWtvjpyQXr5md7fb+zyB7QfyCoZDxb+hXIw9wXalCvL8BgOnSx 17oKgmWmsxEak4dtsU5Pi9cXwKM+t8AeZ7rTra+6aOV6/CWU6VZxrtkpVgz4Zr86 jAc/8xC05EttAUiSAD5OPrAfoIwWClmyoB0d09dzLi5pdTuDMuehZCYenrSPQWA9 YwRbkyOS9zn1/J66ImTC3e06VXvlJ5qexvoxmpNPXILaKKTlo7fNyUJ0f9P2xvfx wqsqX2ATeZM9svJXacoEcrK2nftyaxg96zedbNm1yUJIKYxYoiWCytpg5A68a5kg jRtCKUmoj4DX59sqRZPoQBJFWpmlIp7nAvXcP6S6yuV9cVX3ZP5yj1F6pxDPPnl2 l6vxDYUOb+dHL9g+GnCHi3jAsVwmga7Qkad2eScrdnRpIhdWMRbcZitqI3ioyaXW p5otkKGBCo8= =zx8j -----END PGP SIGNATURE-----