SOL17377 - PHP vulnerabilities CVE-2015-6834, CVE-2015-6835, CVE-2015-6836, CVE-2015-6837, and CVE-2015-6838

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 theVersions 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

To mitigate this vulnerability, you should permit management access to F5 products over a secure network and limit access to only trusted users. For more information about securing access to BIG-IP/Enterprise Manager systems, refer to SOL13309: Restricting access to the Configuration utility by source IP address (11.x - 12.x) and SOL13092: Overview of securing access to the BIG-IP system.

Additionally, you should avoid any customization of PHP files on the affected F5 products.

Supplemental Information

• 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