Improper Authentication in Cisco Adaptive Security Appliance (ASA) - CVE-2020-3125
Published: May 11, 2020
Vulnerability identifier: #VU27688
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3125
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists in the Kerberos authentication feature due to insufficient identity verification of the KDC when a successful authentication response is received. A remote attacker can spoof the KDC server response to the ASA device and bypass Kerberos authentication.
Affected software
Cisco Adaptive Security Appliance (ASA)
How to mitigate CVE-2020-3125
Install updates from vendor's website.
Cisco Adaptive Security Appliance (ASA) - addressed in versions 9.8.4.15, 9.9.2.66, 9.10.1.37, 9.12.3.2, 9.13.1.7