CVE-2020-5902: F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability

CVE-2020-5902 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2021-11-03

The F5 BIG-IP Traffic Management User Interface (TMUI), also known as the Configuration utility, contains a remote code execution vulnerability due to improper limitation of a pathname to a restricted directory (path traversal). This allows unauthenticated attackers with network access to the TMUI to execute arbitrary system commands, create or delete files, and disable services.

Technologies: F5 BIG-IP. Vendors: F5.

Quick answers

Is CVE-2020-5902 exploited in the wild?
Yes. CVE-2020-5902 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-5902?
Critical severity, with a CVSS score of 9.8, published 3 November 2021.
Which products and versions are affected?
F5 BIG-IP 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, 11.6.1-11.6.5.1.
Is there a fix for CVE-2020-5902?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-5902 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2020-5902?
Check whether you run F5 BIG-IP. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • F5 BIG-IP 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, 11.6.1-11.6.5.1

Timeline

  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: disclosed

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