Improper Authentication in Palo Alto PAN-OS - CVE-2020-2002
Published: May 14, 2020
Vulnerability identifier: #VU27896
CSH Severity: Medium
CVSS v4: 7.7 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-2002
CWE-ID: CWE-287
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator.
Affected software
Palo Alto PAN-OS
How to mitigate CVE-2020-2002
Install updates from vendor's website.
Palo Alto PAN-OS - addressed in versions 7.1.26, 8.1.13, 9.0.6