A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code on an affected device.
This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker with valid VPN user credentials could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of the affected device.
Cisco has released software updates that address this vulnerability. Cisco continues to strongly recommend that customers upgrade to a fixed software release to remediate this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-z5xP8EUB
For more information on the vulnerability that is described in this advisory, see Cisco Event Response: Continued Attacks Against Cisco Firewall Platforms.
Security Impact Rating: Critical
CVE: CVE-2025-20333
http://news.poseidon-us.com/TNHfkf
