CVE-2022-20928: cisco adaptive_security_appliance_software Incorrect Authorization

Vulnerability summary

CVE-2022-20928 is a medium (CVSS 5.8) Incorrect Authorization vulnerability in cisco adaptive_security_appliance_software. EPSS estimates a 0.76% chance of exploitation in the next 30 days, higher than 54.4% of scored vulnerabilities.

Timeline

1. 10-11-2022
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the authentication and authorization flows for VPN connections in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to establish a connection as a different user. This vulnerability is due to a flaw in the authorization verifications during the VPN authentication flow. An attacker could exploit this vulnerability by sending a crafted packet during a VPN authentication. The attacker must have valid credentials to establish a VPN connection. A successful exploit could allow the attacker to establish a VPN connection with access privileges from a different user.

• CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.