CVE-2023-42793:CVE-2023-42793 is a critical vulnerability in JetBrains TeamCity that allows for authentication bypass, potentially leading to remote code execution (RCE) on the TeamCity Server.

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Description Preview

In JetBrains TeamCity versions prior to 2023.05.4, an authentication bypass vulnerability was discovered that could allow unauthenticated attackers to execute arbitrary code on the TeamCity Server. This vulnerability is classified under CWE-288, which pertains to improper authentication mechanisms. The exploitation of this vulnerability could lead to severe consequences, including unauthorized access to sensitive data and complete control over the affected server.

Overview

  • CVE ID: CVE-2023-42793
  • Vendor: JetBrains
  • Product: TeamCity
  • Affected Versions: All versions prior to 2023.05.4
  • Severity: Critical (CVSS 9.8)
  • Attack Vector: Network
  • Privileges Required: None
  • User Interaction: None
  • Impact: High impact on confidentiality, integrity, and availability.

Remediation

To mitigate the risks associated with CVE-2023-42793, users of JetBrains TeamCity are advised to upgrade to version 2023.05.4 or later. This update addresses the authentication bypass vulnerability and enhances the security of the TeamCity Server. Additionally, it is recommended to review security configurations and access controls to ensure that only authorized users have access to the server.

References

  1. JetBrains Privacy & Security Issues Fixed
  2. JetBrains TeamCity CVE-2023-42793 Vulnerability Post-Mortem
  3. Packet Storm Security - JetBrains TeamCity Unauthenticated Remote Code Execution
  4. AttackerKB - CVE-2023-42793
  5. SecurityWeek - Recently Patched TeamCity Vulnerability Exploited to Hack Servers
  6. Rapid7 Blog - CVE-2023-42793 Critical Authentication Bypass in JetBrains TeamCity CI/CD Servers
  7. SonarSource Blog - TeamCity Vulnerability

Early Warning

Customers using Armis Early Warning were notified about this vulnerability before it appeared in CISA's Known Exploited Vulnerabilities Catalog, enabling them to assess their exposure and act proactively. Armis offers these examples of CVEs already included in CISA KEV for potential customers. Click here to learn how to receive alerts earlier.

Armis Alert Date
Sep 19, 2023
CISA KEV Date
Oct 4, 2023
15days early

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

Focus on What Matters

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

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