Detections
Analytics
Cisco Firepower Threat Defense Software Encrypted Archive File Policy Bypass (cisco-sa-ftd-archive-bypass-z4wQjwcN)
medium Nessus Plugin ID 266352
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
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.Please see the included Cisco BID and Cisco Security Advisory for more information.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwf06818See Also
Plugin Details
Severity: Medium
ID: 266352
File Name: cisco-sa-ftd-archive-bypass-z4wQjwcN.nasl
Version: 1.1
Type: local
Family: CISCO
Published: 10/1/2025
Updated: 10/1/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 1.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2024-20261
CVSS v3
Risk Factor: Medium
Base Score: 5.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Vulnerability Information
CPE: cpe:/a:cisco:firepower_threat_defense
Required KB Items: installed_sw/Cisco Firepower Threat Defense
Patch Publication Date: 5/22/2024
Vulnerability Publication Date: 5/22/2024
Reference Information
CVE: CVE-2024-20261
CISCO-SA: cisco-sa-ftd-archive-bypass-z4wQjwcN
CISCO-BUG-ID: CSCwf06818