SB2024042463 - Code execution in Cisco Adaptive Security Appliance and Firepower Threat Defense

Description

This security bulletin contains information about 1 vulnerability.

1) Code Injection (CVE-ID: CVE-2024-20359)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber

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

The vulnerability exists due to improper input validation in a legacy capability that allowed for the preloading of VPN clients and plug-ins. A local user can copy a crafted file to the disk0: file system of an affected device and execute arbitrary code with root privileges.

Note, the vulnerability is being actively exploited in the wild.

Remediation

Install update from vendor's website.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-persist-rce-FLsNXF4h
• https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwi98284
• https://blog.talosintelligence.com/arcanedoor-new-espionage-focused-campaign-found-targeting-perimeter-network-devices/