Protect Your Azure DevOps Server from Remote Code Execution Attacks

CVSScvssV3_1: 7.5

Microsoft’s Azure DevOps Server, formerly known as Team Foundation Server (TFS), is a popular tool used by development teams for source code management, work item tracking, release management and more. Unfortunately, a critical remote code execution vulnerability was recently discovered in Azure DevOps Server which could allow attackers to execute arbitrary code on servers running the software.

The vulnerability tracked as CVE-2023-21553 has been given a CVSS score of 7.5, making it a serious risk. It is a remote code execution flaw, meaning attackers do not need any credentials or access to exploit it. By sending specially crafted requests to the Azure DevOps Server, an attacker could potentially install programs, view, change or delete data, or create new accounts with full user rights.

It is believed the vulnerability resides in how Azure DevOps Server handles certain HTTP requests. By manipulating requests in a particular way, an attacker could trick the server into executing code of their choice. This could allow the installation of malware, backdoors or other harmful payloads.

If you are running Azure DevOps Server, it is important to apply any security updates provided by Microsoft to patch this vulnerability as soon as possible. You should also ensure your server is not directly exposed to the internet and has strong passwords and multifactor authentication enabled. Monitoring for unusual activity on your server can also help detect any attempted exploits. Taking prompt action will help protect your development data and systems from this critical remote code execution vulnerability.