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CVE-2020-5913

HIGHCVSS 7.4/10EPSS 0.50%

Last modified

CVE-2020-5913 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. In versions 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.2, the BIG-IP Client or Server SSL profile ignores revoked certificates, even when a valid CRL is present. This impacts SSL/TLS connections and may result in a man-in-the-middle attack on the connections.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

In versions 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.2, the BIG-IP Client or Server SSL profile ignores revoked certificates, even when a valid CRL is present. This impacts SSL/TLS connections and may result in a man-in-the-middle attack on the connections.

Metrics

CVSS 3.1
7.4/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability
0.50%

38.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 11.6.1, < 11.6.5
F5Big-Ip Access Policy Manager>= 12.1.0, < 12.1.5.2
F5Big-Ip Access Policy Manager>= 13.1.0, < 13.1.3
F5Big-Ip Access Policy Manager>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Access Policy Manager>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Access Policy Manager>= 15.0.0, < 15.0.1.2
F5Big-Ip Advanced Firewall Manager>= 11.6.1, < 11.6.5
F5Big-Ip Advanced Firewall Manager>= 12.1.0, < 12.1.5.2
F5Big-Ip Advanced Firewall Manager>= 13.1.0, < 13.1.3
F5Big-Ip Advanced Firewall Manager>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Advanced Firewall Manager>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Advanced Firewall Manager>= 15.0.0, < 15.0.1.2
F5Big-Ip Advanced Web Application Firewall>= 11.6.1, < 11.6.5
F5Big-Ip Advanced Web Application Firewall>= 12.1.0, < 12.1.5.2
F5Big-Ip Advanced Web Application Firewall>= 13.1.0, < 13.1.3
F5Big-Ip Advanced Web Application Firewall>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Advanced Web Application Firewall>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Advanced Web Application Firewall>= 15.0.0, < 15.0.1.2
F5Big-Ip Analytics>= 11.6.1, < 11.6.5
F5Big-Ip Analytics>= 12.1.0, < 12.1.5.2
F5Big-Ip Analytics>= 13.1.0, < 13.1.3
F5Big-Ip Analytics>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Analytics>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Analytics>= 15.0.0, < 15.0.1.2
F5Big-Ip Application Acceleration Manager>= 11.6.1, < 11.6.5
F5Big-Ip Application Acceleration Manager>= 12.1.0, < 12.1.5.2
F5Big-Ip Application Acceleration Manager>= 13.1.0, < 13.1.3
F5Big-Ip Application Acceleration Manager>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Application Acceleration Manager>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Application Acceleration Manager>= 15.0.0, < 15.0.1.2
F5Big-Ip Application Security Manager>= 11.6.1, < 11.6.5
F5Big-Ip Application Security Manager>= 12.1.0, < 12.1.5.2
F5Big-Ip Application Security Manager>= 13.1.0, < 13.1.3
F5Big-Ip Application Security Manager>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Application Security Manager>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Application Security Manager>= 15.0.0, < 15.0.1.2
F5Big-Ip Ddos Hybrid Defender>= 11.6.1, < 11.6.5
F5Big-Ip Ddos Hybrid Defender>= 12.1.0, < 12.1.5.2
F5Big-Ip Ddos Hybrid Defender>= 13.1.0, < 13.1.3
F5Big-Ip Ddos Hybrid Defender>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Ddos Hybrid Defender>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Ddos Hybrid Defender>= 15.0.0, < 15.0.1.2
F5Big-Ip Domain Name System>= 11.6.1, < 11.6.5
F5Big-Ip Domain Name System>= 12.1.0, < 12.1.5.2
F5Big-Ip Domain Name System>= 13.1.0, < 13.1.3
F5Big-Ip Domain Name System>= 14.1.0, < 14.1.2-0.89.37
F5Big-Ip Domain Name System>= 14.1.2.1, < 14.1.2.5
F5Big-Ip Domain Name System>= 15.0.0, < 15.0.1.2
F5Big-Ip Fraud Protection Service>= 11.6.1, < 11.6.5
F5Big-Ip Fraud Protection Service>= 12.1.0, < 12.1.5.2

Showing 50 of 84 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-5913?
In versions 15.0.0-15.1.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.2, the BIG-IP Client or Server SSL profile ignores revoked certificates, even when a valid CRL is present. This impacts SSL/TLS connections and may result in a man-in-the-middle attack on the connections.
How severe is CVE-2020-5913?
CVE-2020-5913 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5913?
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.

Are you affected by CVE-2020-5913?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST