Cisco Firepower Threat Defense Software Encrypted Archive File Policy access control

Summaryinfo

A vulnerability was found in Cisco Firepower Threat Defense Software. It has been declared as critical. This vulnerability affects unknown code of the component Encrypted Archive File Policy. The manipulation results in access control. This vulnerability is known as CVE-2024-20261. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Cisco Firepower Threat Defense Software (version now known). Affected is some unknown processing of the component Encrypted Archive File Policy. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on integrity. CVE summarizes:

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.

The advisory is available at sec.cloudapps.cisco.com. This vulnerability is traded as CVE-2024-20261 since 11/08/2023. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/30/2025). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Firewall Software

Vendor

• Cisco

Name

• Firepower Threat Defense Software

License

• commercial

Website

• Vendor: https://www.cisco.com/

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