CVE-2021-3051 Cortex XSOAR: Authentication Bypass in SAML Authentication

High 8.1 Published Updated

An attacker can bypass SAML authentication to access protected resources and perform unauthorized actions on the Cortex XSOAR server.

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-2021-3051?

CVE-2021-3051 is a high-severity authentication bypass vulnerability in Palo Alto Networks Cortex XSOAR, published on 8 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR SAML authentication that enables an unauthenticated network-based attacker with specific knowledge of the Cortex XSOAR instance to access protected resources and perform unauthorized actions on the Cortex XSOAR server. This issue impacts: Cortex XSOAR 5.5.0 builds earlier than 1578677; Cortex XSOAR 6.0.2 builds earlier than 1576452; Cortex XSOAR 6.1.0 builds earlier than 1578663; Cortex XSOAR 6.2.0 builds earlier than 1578666. All Cortex XSOAR instances hosted by Palo Alto Networks are protected from this vulnerability; no additional action is required for these instances.

Weakness: CWE-347

Which versions are affected by CVE-2021-3051?

It affects 1 product.

Products include Paloaltonetworks Cortex Xsoar.

How do I fix CVE-2021-3051?

No fix has been published for CVE-2021-3051 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-2021-3051 being exploited?

There is no known exploitation of CVE-2021-3051 in the wild and no public exploit code.

Sources

Also known as GHSA-4qfq-vjf3-59qg.

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