How severe is CVE-2022-36971?

CVE-2022-36971 is considered critical with a severity rating of 9.8.

How can an attacker exploit CVE-2022-36971?

An attacker can exploit CVE-2022-36971 by bypassing the existing authentication mechanism and executing arbitrary code remotely.

Is authentication required to exploit CVE-2022-36971?

Yes, authentication is required to exploit CVE-2022-36971, but the existing authentication mechanism can be bypassed.

What is the affected software?

The affected software is Ivanti Avalanche version 6.3.2.3490, but versions up to 6.3.4 are also vulnerable.

Vulnerability/
CVE-2022-36971

critical

9.8

CWE

502

29/3/2023

3/8/2024

CVE-2022-36971: Ivanti Avalanche JwtTokenUtility Deserialization of Untrusted Data Remote Code Execution Vulnerability

Q: What is CVE-2022-36971?

CVE-2022-36971 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.2.3490.

First published: Wed Mar 29 2023(Updated: )

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.2.3490. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the JwtTokenUtility class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-15301.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Ivanti Avalanche	>=6.3.2.3490<6.3.4

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Frequently Asked Questions

What is CVE-2022-36971?
CVE-2022-36971 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.2.3490.
How severe is CVE-2022-36971?
CVE-2022-36971 is considered critical with a severity rating of 9.8.
How can an attacker exploit CVE-2022-36971?
An attacker can exploit CVE-2022-36971 by bypassing the existing authentication mechanism and executing arbitrary code remotely.
Is authentication required to exploit CVE-2022-36971?
Yes, authentication is required to exploit CVE-2022-36971, but the existing authentication mechanism can be bypassed.
What is the affected software?
The affected software is Ivanti Avalanche version 6.3.2.3490, but versions up to 6.3.4 are also vulnerable.

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