Information disclosure in F5 Big-Ip Access Policy Manager
CVE-2016-9244
A BIG-IP virtual server configured with a Client SSL profile that has the non-default Session Tickets option enabled may leak up to 31 bytes of uninitialized memory. A remote attacker may exploit this vulnerability to obtain Secure Sockets Layer (SSL) session IDs from other sessions. It is possible that other data from uninitialized memory may be returned as well.
Vulnerability class: Information Disclosure
EPSS: 0.740 (99.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- F5 Big-ip_access_policy_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_advanced_firewall_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_analytics — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_application_acceleration_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_application_security_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_global_traffic_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_link_controller — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_local_traffic_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_policy_enforcement_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_protocol_security_module — versions 11.4.0, 11.4.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- f5sirt@f5.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- f5sirt@f5.com (exploit, x_refsource_EXPLOIT-DB)
- f5sirt@f5.com (x_refsource_MISC)
- f5sirt@f5.com (vdb-entry, x_refsource_BID)
- f5sirt@f5.com (x_refsource_MISC)
- f5sirt@f5.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- f5sirt@f5.com (x_refsource_MISC)
- f5sirt@f5.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2016-9244?
- CVE-2016-9244 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, classified under Information Disclosure. CVSS score: 7.5/10. Published 2017-02-09.
- How severe is CVE-2016-9244?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-9244 known to be exploited?
- 28 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.