CVE-2020-2002 PAN-OS: Spoofed Kerberos key distribution center authentication bypass

High 8.1 Published 13 May 2020 Updated 17 Sep 2024

Man-in-the-middle attackers can bypass Kerberos authentication to gain administrator access on PAN-OS devices using Kerberos profiles.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-2002?

CVE-2020-2002 is a high-severity authentication bypass vulnerability in Paloaltonetworks Pan-Os, published on 13 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An authentication bypass by spoofing vulnerability exists in 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. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0.

Weakness: CWE-290

Which versions are affected by CVE-2020-2002?

It affects 1 product.

Products include Paloaltonetworks Pan-Os.

How do I fix CVE-2020-2002?

No fix has been published for CVE-2020-2002 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-2002 being exploited?

There is no known exploitation of CVE-2020-2002 in the wild and no public exploit code.

All Paloaltonetworks Pan-Os vulnerabilities

Sources

Also known as GHSA-2vhw-349f-2gq5.