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CVE-2016-5736

UnknownEPSS 2.27%

Last modified

CVE-2016-5736 is a vulnerability of currently unknown severity. 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 estimates a 2.27% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
2.27%

80.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Application Acceleration Manager11.4.0
F5Big-Ip Application Acceleration Manager11.4.1
F5Big-Ip Application Acceleration Manager11.5.0
F5Big-Ip Application Acceleration Manager11.5.1
F5Big-Ip Application Acceleration Manager11.5.2
F5Big-Ip Application Acceleration Manager11.5.3
F5Big-Ip Application Acceleration Manager11.5.4
F5Big-Ip Application Acceleration Manager11.6.0
F5Big-Ip Application Acceleration Manager12.0.0
F5Big-Ip Webaccelerator11.2.1
F5Big-Ip Analytics11.2.1
F5Big-Ip Analytics11.4.0
F5Big-Ip Analytics11.4.1
F5Big-Ip Analytics11.5.0
F5Big-Ip Analytics11.5.1
F5Big-Ip Analytics11.5.2
F5Big-Ip Analytics11.5.3
F5Big-Ip Analytics11.5.4
F5Big-Ip Analytics11.6.0
F5Big-Ip Analytics12.0.0
F5Big-Ip Domain Name System12.0.0
F5Big-Ip Edge Gateway11.2.1
F5Big-Ip Access Policy Manager11.2.1
F5Big-Ip Access Policy Manager11.4.0
F5Big-Ip Access Policy Manager11.4.1
F5Big-Ip Access Policy Manager11.5.0
F5Big-Ip Access Policy Manager11.5.1
F5Big-Ip Access Policy Manager11.5.2
F5Big-Ip Access Policy Manager11.5.3
F5Big-Ip Access Policy Manager11.5.4
F5Big-Ip Access Policy Manager11.6.0
F5Big-Ip Access Policy Manager12.0.0
F5Big-Ip Local Traffic Manager11.2.1
F5Big-Ip Local Traffic Manager11.4.0
F5Big-Ip Local Traffic Manager11.4.1
F5Big-Ip Local Traffic Manager11.5.0
F5Big-Ip Local Traffic Manager11.5.1
F5Big-Ip Local Traffic Manager11.5.2
F5Big-Ip Local Traffic Manager11.5.3
F5Big-Ip Local Traffic Manager11.5.4
F5Big-Ip Local Traffic Manager11.6.0
F5Big-Ip Local Traffic Manager12.0.0
F5Big-Ip Advanced Firewall Manager11.4.0
F5Big-Ip Advanced Firewall Manager11.4.1
F5Big-Ip Advanced Firewall Manager11.5.0
F5Big-Ip Advanced Firewall Manager11.5.1
F5Big-Ip Advanced Firewall Manager11.5.2
F5Big-Ip Advanced Firewall Manager11.5.3
F5Big-Ip Advanced Firewall Manager11.5.4
F5Big-Ip Advanced Firewall Manager11.6.0

Showing 50 of 94 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2016-5736?
Severity scoring for CVE-2016-5736 is pending analysis. The EPSS model estimates a 2.27% probability of exploitation in the next 30 days.
How do I fix CVE-2016-5736?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST