CVE-2024-20384

Published: Oct 23, 2024Modified: Aug 1, 2025

5.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Exploitability: 3.9 / Impact: 1.4

Source: psirt@cisco.com (Secondary)

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.

Affected (110)

Products: Cisco: Adaptive Security Appliance Software, Firepower Threat Defense

Cisco

2 products

Adaptive Security Appliance Software

Firepower Threat Defense

Configuration A

72 vulnerable

Vulnerable Software	Affected Versions
Cisco Adaptive Security Appliance Software	Version 9.16.1.28
Cisco Adaptive Security Appliance Software	Version 9.16.1
Cisco Adaptive Security Appliance Software	Version 9.16.2.11
Cisco Adaptive Security Appliance Software	Version 9.16.2.13
Cisco Adaptive Security Appliance Software	Version 9.16.2.14
Cisco Adaptive Security Appliance Software	Version 9.16.2.3
Cisco Adaptive Security Appliance Software	Version 9.16.2.7
Cisco Adaptive Security Appliance Software	Version 9.16.2
Cisco Adaptive Security Appliance Software	Version 9.16.3.14
Cisco Adaptive Security Appliance Software	Version 9.16.3.15
Cisco Adaptive Security Appliance Software	Version 9.16.3.19
Cisco Adaptive Security Appliance Software	Version 9.16.3.23
Cisco Adaptive Security Appliance Software	Version 9.16.3.3
Cisco Adaptive Security Appliance Software	Version 9.16.3
Cisco Adaptive Security Appliance Software	Version 9.16.4.14
Cisco Adaptive Security Appliance Software	Version 9.16.4.18
Cisco Adaptive Security Appliance Software	Version 9.16.4.19
Cisco Adaptive Security Appliance Software	Version 9.16.4.27
Cisco Adaptive Security Appliance Software	Version 9.16.4.38
Cisco Adaptive Security Appliance Software	Version 9.16.4.39
Cisco Adaptive Security Appliance Software	Version 9.16.4.42
Cisco Adaptive Security Appliance Software	Version 9.16.4.48
Cisco Adaptive Security Appliance Software	Version 9.16.4.55
Cisco Adaptive Security Appliance Software	Version 9.16.4.57
Cisco Adaptive Security Appliance Software	Version 9.16.4.61
Cisco Adaptive Security Appliance Software	Version 9.16.4.9
Cisco Adaptive Security Appliance Software	Version 9.16.4
Cisco Adaptive Security Appliance Software	Version 9.17.1.10
Cisco Adaptive Security Appliance Software	Version 9.17.1.11
Cisco Adaptive Security Appliance Software	Version 9.17.1.13
Cisco Adaptive Security Appliance Software	Version 9.17.1.15
Cisco Adaptive Security Appliance Software	Version 9.17.1.20
Cisco Adaptive Security Appliance Software	Version 9.17.1.30
Cisco Adaptive Security Appliance Software	Version 9.17.1.33
Cisco Adaptive Security Appliance Software	Version 9.17.1.39
Cisco Adaptive Security Appliance Software	Version 9.17.1.7
Cisco Adaptive Security Appliance Software	Version 9.17.1.9
Cisco Adaptive Security Appliance Software	Version 9.17.1
Cisco Adaptive Security Appliance Software	Version 9.18.1.3
Cisco Adaptive Security Appliance Software	Version 9.18.1
Cisco Adaptive Security Appliance Software	Version 9.18.2.5
Cisco Adaptive Security Appliance Software	Version 9.18.2.7
Cisco Adaptive Security Appliance Software	Version 9.18.2.8
Cisco Adaptive Security Appliance Software	Version 9.18.2
Cisco Adaptive Security Appliance Software	Version 9.18.3.39
Cisco Adaptive Security Appliance Software	Version 9.18.3.46
Cisco Adaptive Security Appliance Software	Version 9.18.3.53
Cisco Adaptive Security Appliance Software	Version 9.18.3.55
Cisco Adaptive Security Appliance Software	Version 9.18.3.56
Cisco Adaptive Security Appliance Software	Version 9.18.3
Cisco Adaptive Security Appliance Software	Version 9.18.4.22
Cisco Adaptive Security Appliance Software	Version 9.18.4.24
Cisco Adaptive Security Appliance Software	Version 9.18.4.29
Cisco Adaptive Security Appliance Software	Version 9.18.4.5
Cisco Adaptive Security Appliance Software	Version 9.18.4.8
Cisco Adaptive Security Appliance Software	Version 9.18.4
Cisco Adaptive Security Appliance Software	Version 9.19.1.12
Cisco Adaptive Security Appliance Software	Version 9.19.1.18
Cisco Adaptive Security Appliance Software	Version 9.19.1.22
Cisco Adaptive Security Appliance Software	Version 9.19.1.24
Cisco Adaptive Security Appliance Software	Version 9.19.1.27
Cisco Adaptive Security Appliance Software	Version 9.19.1.28
Cisco Adaptive Security Appliance Software	Version 9.19.1.31
Cisco Adaptive Security Appliance Software	Version 9.19.1.5
Cisco Adaptive Security Appliance Software	Version 9.19.1.9
Cisco Adaptive Security Appliance Software	Version 9.19.1
Cisco Adaptive Security Appliance Software	Version 9.20.1.5
Cisco Adaptive Security Appliance Software	Version 9.20.1
Cisco Adaptive Security Appliance Software	Version 9.20.2.10
Cisco Adaptive Security Appliance Software	Version 9.20.2.21
Cisco Adaptive Security Appliance Software	Version 9.20.2.22
Cisco Adaptive Security Appliance Software	Version 9.20.2

Configuration B

38 vulnerable

Vulnerable Software	Affected Versions
Cisco Firepower Threat Defense	Version 7.0.0.1
Cisco Firepower Threat Defense	Version 7.0.0
Cisco Firepower Threat Defense	Version 7.0.1.1
Cisco Firepower Threat Defense	Version 7.0.1
Cisco Firepower Threat Defense	Version 7.0.2.1
Cisco Firepower Threat Defense	Version 7.0.2
Cisco Firepower Threat Defense	Version 7.0.3
Cisco Firepower Threat Defense	Version 7.0.4
Cisco Firepower Threat Defense	Version 7.0.5
Cisco Firepower Threat Defense	Version 7.0.6.1
Cisco Firepower Threat Defense	Version 7.0.6.2
Cisco Firepower Threat Defense	Version 7.0.6
Cisco Firepower Threat Defense	Version 7.1.0.1
Cisco Firepower Threat Defense	Version 7.1.0.2
Cisco Firepower Threat Defense	Version 7.1.0.3
Cisco Firepower Threat Defense	Version 7.1.0
Cisco Firepower Threat Defense	Version 7.2.0.1
Cisco Firepower Threat Defense	Version 7.2.0
Cisco Firepower Threat Defense	Version 7.2.1
Cisco Firepower Threat Defense	Version 7.2.2
Cisco Firepower Threat Defense	Version 7.2.3
Cisco Firepower Threat Defense	Version 7.2.4.1
Cisco Firepower Threat Defense	Version 7.2.4
Cisco Firepower Threat Defense	Version 7.2.5.1
Cisco Firepower Threat Defense	Version 7.2.5.2
Cisco Firepower Threat Defense	Version 7.2.5
Cisco Firepower Threat Defense	Version 7.2.6
Cisco Firepower Threat Defense	Version 7.2.7
Cisco Firepower Threat Defense	Version 7.2.8.1
Cisco Firepower Threat Defense	Version 7.2.8
Cisco Firepower Threat Defense	Version 7.3.0
Cisco Firepower Threat Defense	Version 7.3.1.1
Cisco Firepower Threat Defense	Version 7.3.1.2
Cisco Firepower Threat Defense	Version 7.3.1
Cisco Firepower Threat Defense	Version 7.4.0
Cisco Firepower Threat Defense	Version 7.4.1.1
Cisco Firepower Threat Defense	Version 7.4.1
Cisco Firepower Threat Defense	Version 7.4.2

Related CWEs

CWE-290

Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

References (1)

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-nsgacl-bypass-77XnEAsL

Source: psirt@cisco.com

Vendor Advisory

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