Vulnerability identifier: #VU56411

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3051

CWE-ID: CWE-347

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cortex XSOAR
Server applications / DLP, anti-spam, sniffers

Vendor: Palo Alto Networks, Inc.

Description

The vulnerability allows a remote attacker to bypass SAML authentication.

The vulnerability exists due to improper verification of cryptographic signature vulnerability exists in Cortex XSOAR SAML authentication. A remote non-authenticated attacker with specific knowledge of the Cortex XSOAR instance can access protected resources and perform unauthorized actions on the Cortex XSOAR server.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cortex XSOAR: 6.2.0 1271065, 6.1.0 271064 - 6.1.0 build 848144, 6.0.1 build 81077 - 6.0.2 build 98623, 5.5 build 70066 - 5.5 build 98622

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External links
http://security.paloaltonetworks.com/CVE-2021-3051

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.