Cisco ASA: CVE-2024-20384: Cisco Adaptive Security Appliance and Firepower Threat Defense Software NSG Access Control List Bypass Vulnerability

Cisco ASA: CVE-2024-20384: Cisco Adaptive Security Appliance and Firepower Threat Defense Software NSG Access Control List Bypass Vulnerability

Severity

5

CVSS

(AV:N/AC:L/Au:N/C:N/I:P/A:N)

Published

10/23/2024

Created

10/25/2024

Added

10/24/2024

Modified

01/10/2025

Description

A vulnerability in the Network Service Group (NSG) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should be denied to flow through an affected device. This vulnerability is due to a logic error that occurs when NSG ACLs are populated on an affected device. An attacker could exploit this vulnerability by establishing a connection to the affected device. A successful exploit could allow the attacker to bypass configured ACL rules.

Solution(s)

• cisco-asa-update-latest

References

• https://attackerkb.com/topics/cve-2024-20384
• CVE - 2024-20384
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-nsgacl-bypass-77XnEAsL
• cisco-sa-asaftd-nsgacl-bypass-77XnEAsL