SB2022111016 - Incorrect authorization in Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software
Published: November 10, 2022
Security Bulletin ID
SB2022111016
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Incorrect authorization (CVE-ID: CVE-2022-20928)
CWE-ID: CWE-863 - Incorrect Authorization
CVSSv4: 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
The vulnerability allows a remote attacker to establish a connection as a different user.
The vulnerability exists due to a flaw in the authorization verifications during the VPN authentication flow. A remote attacker can send a specially crafted packet during a VPN authentication and establish a VPN connection with access privileges from a different user.
Remediation
Install update from vendor's website.