CVE-2021-25774
JetBrains TeamCity vulnerability analysis and mitigation

Overview

CVE-2021-25774 is a security vulnerability discovered in JetBrains TeamCity versions before 2020.2.1. The vulnerability allowed a user to gain unauthorized access to another user's GitHub access token (JetBrains Blog, NVD).

Technical details

The vulnerability was classified as having a Low severity impact. It was specifically related to improper access control mechanisms in TeamCity that could allow one user to access GitHub access tokens belonging to another user. The issue was discovered and reported internally as TW-68646 (JetBrains Blog).

Impact

The vulnerability could potentially allow unauthorized access to GitHub access tokens, which could lead to unauthorized access to GitHub resources belonging to other TeamCity users (JetBrains Blog).

Exploitability

The vulnerability required an authenticated user in the TeamCity system to exploit. No public exploits were reported in the wild (JetBrains Blog).

Mitigation and workarounds

The vulnerability was patched in TeamCity version 2020.2.1. Users were advised to upgrade to this version or later to resolve the security issue (JetBrains Blog).

Additional resources


SourceThis report was generated using AI

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