CVE-2024-20261 Security feature bypass in Cisco Firepower Threat Defense Software

Medium 5.8 Published Updated

An unauthenticated remote attacker can bypass file policy inspection to deliver malicious encrypted archives on Cisco Firepower Threat Defense devices.

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-2024-20261?

CVE-2024-20261 is a medium-severity vulnerability in Cisco Secure Firewall Threat Defense, published on 22 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the file policy feature that is used to inspect encrypted archive files of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured file policy to block an encrypted archive file. This vulnerability exists because of a logic error when a specific class of encrypted archive files is inspected. An attacker could exploit this vulnerability by sending a crafted, encrypted archive file through the affected device. A successful exploit could allow the attacker to send an encrypted archive file, which could contain malware and should have been blocked and dropped at the Cisco FTD device.

Weakness: CWE-284

Which versions are affected by CVE-2024-20261?

It affects 1 product.

Products include Cisco Secure Firewall Threat Defense.

How do I fix CVE-2024-20261?

No fix has been published for CVE-2024-20261 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-20261 being exploited?

There is no known exploitation of CVE-2024-20261 in the wild and no public exploit code.

All Cisco Secure Firewall Threat Defense vulnerabilities

Sources

Also known as GHSA-q636-jcmg-x9g2.

Is CVE-2024-20261 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free