CVE-2021-26310:Denial of Service vulnerability in TeamCity IntelliJ plugin before version 2020.2.2.85899

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A Denial of Service (DoS) vulnerability was identified in the TeamCity IntelliJ plugin for versions prior to 2020.2.2.85899. This vulnerability could allow an attacker to cause the plugin to become unresponsive or crash, potentially disrupting development workflows and reducing productivity for affected users.

Overview

The TeamCity IntelliJ plugin is an integration tool that allows developers to interact with JetBrains TeamCity continuous integration server directly from their IntelliJ IDEA environment. The vulnerability (CVE-2021-26310) affects versions of the plugin prior to 2020.2.2.85899 and could lead to Denial of Service conditions. When exploited, this vulnerability could cause the plugin to consume excessive resources or crash, preventing users from accessing TeamCity functionality within their IDE. The exact attack vector and technical details of the vulnerability were not fully disclosed in the public advisory.

Remediation

To address this vulnerability, users should update their TeamCity IntelliJ plugin to version 2020.2.2.85899 or later. The update can be performed through the standard IntelliJ IDEA plugin management interface:

  1. Open IntelliJ IDEA
  2. Navigate to File > Settings > Plugins (or IntelliJ IDEA > Preferences > Plugins on macOS)
  3. Select the "Installed" tab
  4. Find the TeamCity plugin and click "Update" if available
  5. Restart the IDE when prompted

If automatic updates are not available, users can manually download and install the latest version from the JetBrains plugin repository or directly from within IntelliJ IDEA's marketplace.

References

  1. JetBrains Security Bulletin Q1 2021: https://blog.jetbrains.com/blog/2021/05/07/jetbrains-security-bulletin-q1-2021/
  2. JetBrains TeamCity Plugin Documentation: https://blog.jetbrains.com
  3. CVE-2021-26310 MITRE Entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26310

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Finance and Insurance
    Finance and Insurance
  2. Manufacturing
    Manufacturing
  3. Other Services (except Public Administration)
    Other Services (except Public Administration)
  4. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  5. Accommodation & Food Services
    Accommodation & Food Services
  6. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  7. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  8. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  9. Construction
    Construction
  10. Educational Services
    Educational Services
  11. Health Care & Social Assistance
    Health Care & Social Assistance
  12. Information
    Information
  13. Management of Companies & Enterprises
    Management of Companies & Enterprises
  14. Mining
    Mining
  15. Public Administration
    Public Administration
  16. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  17. Retail Trade
    Retail Trade
  18. Transportation & Warehousing
    Transportation & Warehousing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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Armis Vulnerability Intelligence Database