#VU89824 Interpretation conflict in Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) - CVE-2024-20293

Vulnerability identifier: #VU89824

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-20293

CWE-ID: CWE-436

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Hardware solutions / Security hardware applicances
Cisco Firepower Threat Defense (FTD)
Hardware solutions / Security hardware applicances

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to a logic error when activating an access control list (ACL). A remote non-authenticated attacker can bypass implemented access controls and gain unauthorized access to the network.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Adaptive Security Appliance (ASA): before 9.19.1.27, 9.20.2, 9.19.1.27, 9.19.1.27

Cisco Firepower Threat Defense (FTD): before 7.4.1, 7.4.1

---

External links
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ogsnsg-aclbyp-3XB8q6jX
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwi17713

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.