#VU72231 Code Injection in Azure DevOps Server - CVE-2023-21553

Vulnerability identifier: #VU72231

Vulnerability risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-21553

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Azure DevOps Server
Server applications / Application servers

Vendor: Microsoft

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. A remote user can pass certain variable into the specific pipeline and execute arbitrary code on the target server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Azure DevOps Server: 2020 Update 1.1 - 2020.1.1 Patch 4

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External links
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21553

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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