CVE-2021-3046 PAN-OS: Improper SAML Authentication Vulnerability in GlobalProtect Portal

What is CVE-2021-3046?

CVE-2021-3046 is a medium-severity authentication bypass vulnerability in Paloaltonetworks Pan-Os, published on 11 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An improper authentication vulnerability exists in Palo Alto Networks PAN-OS software that enables a SAML authenticated attacker to impersonate any other user in the GlobalProtect Portal and GlobalProtect Gateway when they are configured to use SAML authentication. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. PAN-OS 10.1 versions are not impacted.

Weakness: CWE-287

Which versions are affected by CVE-2021-3046?

It affects 1 product.

Products include Paloaltonetworks Pan-Os.

How do I fix CVE-2021-3046?

No fix has been published for CVE-2021-3046 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-2021-3046 being exploited?

There is no known exploitation of CVE-2021-3046 in the wild and no public exploit code.

Other vulnerabilities in Paloaltonetworks Pan-Os

• CVE-2024-3400 Palo Alto Networks PAN-OS Command Injection Exploited Critical 10.0
• CVE-2020-2021 Palo Alto Networks PAN-OS Authentication Bypass Exploited Critical 10.0
• CVE-2017-15944 Palo Alto Networks PAN-OS Remote Code Execution Exploited Critical 9.8
• CVE-2026-0300 Palo Alto Networks PAN-OS Out-of-bounds Write Exploited Critical 9.3
• CVE-2024-0012 Palo Alto Networks PAN-OS Management Interface Authentication Bypass Exploited Critical 9.3

All Paloaltonetworks Pan-Os vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-44gm-f5rv-c627.