Vulnerability in F5 Big-Ip Access Policy Manager
CVE-2016-5736
The default configuration of the IPsec IKE peer listener in F5 BIG-IP LTM, Analytics, APM, ASM, and Link Controller 11.2.1 before HF16, 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.x before 12.0.0 HF2; BIG-IP AAM, AFM, and PEM 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.x before 12.0.0 HF2; BIG-IP DNS 12.x before 12.0.0 HF2; BIG-IP Edge Gateway, WebAccelerator, and WOM 11.2.1 before HF16; BIG-IP GTM 11.2.1 before HF16, 11.4.x, 11.5.x before 11.5.4 HF2, and 11.6.x before 11.6.1; and BIG-IP PSM 11.4.0 through 11.4.1 improperly enables the anonymous IPsec IKE peer configuration object, which allows remote attackers to establish an IKE Phase 1 negotiation and possibly conduct brute-force attacks against Phase 2 negotiations via unspecified vectors.
EPSS: 0.023 (81.9th 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:N/I:N/A:H.
Affected products
- F5 Big-ip_access_policy_manager — versions 11.2.1, 11.4.0, 11.4.1
- F5 Big-ip_advanced_firewall_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_analytics — versions 11.2.1, 11.4.0, 11.4.1
- F5 Big-ip_application_acceleration_manager — versions 11.4.0, 11.4.1, 11.5.0
- F5 Big-ip_application_security_manager — versions 11.2.1, 11.4.0, 11.4.1
- F5 Big-ip_domain_name_system — versions 12.0.0
- F5 Big-ip_edge_gateway — versions 11.2.1
- F5 Big-ip_global_traffic_manager — versions 11.2.1, 11.4.0, 11.4.1
- F5 Big-ip_link_controller — versions 11.2.1, 11.4.0, 11.4.1
- F5 Big-ip_local_traffic_manager — versions 11.2.1, 11.4.0, 11.4.1
Weakness classification (CWE)
References
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2016-5736?
- CVE-2016-5736 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, classified under Improper Access Control. CVSS score: 7.5/10. Published 2016-08-19.
- How severe is CVE-2016-5736?
- High severity. CVSS v3 base score is 7.5 out of 10.