CVE-2023-22521 Code injection in Crowd Data Center

High 8.0 Published 21 Nov 2023 Updated 2 Aug 2024

Authenticated attackers can execute arbitrary code on Atlassian Crowd servers, compromising confidentiality, integrity, and availability.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-22521?

CVE-2023-22521 is a high-severity code injection vulnerability in Atlassian Crowd Data Center, published on 21 Nov 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

This High severity RCE (Remote Code Execution) vulnerability was introduced in version 3.4.6 of Crowd Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 8.0, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Crowd Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: Crowd Data Center and Server 3.4: Upgrade to a release greater than or equal to 5.1.6 Crowd Data Center and Server 5.2: Upgrade to a release greater than or equal to 5.2.1 See the release notes ([https://confluence.atlassian.com/crowd/crowd-release-notes-199094.html]). You can download the latest version of Crowd Data Center and Server from the download center ([https://www.atlassian.com/software/crowd/download-archive]). This vulnerability was discovered by m1sn0w and reported via our Bug Bounty program

Which versions are affected by CVE-2023-22521?

It affects 1 product.

Products include Atlassian Crowd.

How do I fix CVE-2023-22521?

No fix has been published for CVE-2023-22521 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2023-22521 being exploited?

There is no known exploitation of CVE-2023-22521 in the wild and no public exploit code.

Sources

Also known as GHSA-m6fg-m377-682m.