CVE-2020-5913 Security feature bypass in BIG-IP

High 7.4 Published Updated

BIG-IP SSL profiles ignore revoked certificates, enabling man-in-the-middle attacks on SSL/TLS connections.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-5913?

CVE-2020-5913 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, published on 26 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-295

Which versions are affected by CVE-2020-5913?

It affects 14 products.

Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager and 8 more.

How do I fix CVE-2020-5913?

No fix has been published for CVE-2020-5913 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-5913 being exploited?

There is no known exploitation of CVE-2020-5913 in the wild and no public exploit code.

All F5 Big-Ip Access Policy Manager vulnerabilities

Sources

Also known as GHSA-27vh-g9xh-6mc8.

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