Vulnerability identifier: #VU99312

Vulnerability risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-20485

CWE-ID: CWE-94

Exploitation vector: Local

Exploit availability: No

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

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper validation of a specific file when it is read from system flash memory in the VPN web server. A local user can restore a specially crafted backup file on the affected device and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Firepower Threat Defense (FTD): 7.0.0 - 7.0.6.2

Cisco Adaptive Security Appliance (ASA): 9.17 - 9.17.1.39, 9.20.1 - 9.20.2.10, 9.16 - 9.16.4.57, 9.18 - 9.18.4.22, 9.19.1 - 9.19.1.27, 9.15 - 9.15.1.21, 9.14 - 9.14.4.24, 9.13 - 9.13.1.21, 9.12 - 9.12.4.67, 9.10 - 9.10.1.44, 9.9 - 9.9.2.235, 9.8 - 9.8.4.48

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External links
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-persist-lce-vU3ekMJ3
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwj06675

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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