#VU83452 Input validation error in Crowd - CVE-2023-22521

Vulnerability identifier: #VU83452

Vulnerability risk: Low

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-22521

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Crowd
Server applications / Directory software, identity management

Vendor: Atlassian

Description

The vulnerability allows a remote user to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote privileged user can pass specially crafted input to the application and execute arbitrary code on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Crowd: 3.4.6, 3.5.0 - 3.5.1, 3.6.0 - 3.6.2, 3.7.0 - 3.7.2, 4.0.0 - 4.0.5, 4.1.0 - 4.1.10, 4.2.0 - 4.2.5, 4.3.0 - 4.3.9, 4.4.0 - 4.4.5, 5.0 - 5.0.8, 5.1 - 5.1.5, 5.2.0

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External links
https://confluence.atlassian.com/pages/viewpage.action?pageId=1318881573
https://jira.atlassian.com/browse/CWD-6139

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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