Home/CVE/An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Al
CVE

CVE-2020-2002

An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Al

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.

HIGH · CVSS 8.1 EPSS 0.00584
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-290Authentication Bypass by Spoofing
CWE-290Authentication Bypass by Spoofing
▤

Affected Products & Versions

4
paloaltonetworks pan-os>= 7.1.0 and < 7.1.26
paloaltonetworks pan-os>= 8.0.0 and <= 8.0.20
paloaltonetworks pan-os>= 8.1.0 and < 8.1.13
paloaltonetworks pan-os>= 9.0.0 and < 9.0.6
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · psirt@paloaltonetworks.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 May 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.paloaltonetworks.com/CVE-2020-2002Vendor Advisory
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