In JetBrains TeamCity versions prior to 2024.12.1, a vulnerability exists that allows the decryption of connection secrets without the necessary permissions via the Test Connection endpoint. This vulnerability is classified as medium severity with a CVSS score of 6.5, indicating a moderate risk to organizations using the affected software. The vulnerability's exploitation could lead to unauthorized access to sensitive information, which is particularly concerning given the potential impact on confidentiality.
As this vulnerability involves unauthorized decryption of secrets, it poses a real-world risk to organizations, especially those that rely on JetBrains TeamCity for continuous integration and deployment pipelines. Attackers may leverage this weakness to gain sensitive connection information, resulting in further exploitation of the system.
Given the nature of this vulnerability, organizations should prioritize patching immediately to prevent any potential unauthorized access. The last modification date for the CVE is January 30, 2025, indicating the urgency for defenders to implement the necessary updates.
Currently, there is no known public exploit or proof of concept associated with this vulnerability, which offers a temporary window for organizations to apply the required updates and secure their environments.
Vulnerability Details
JetBrains TeamCity versions prior to 2024.12.1 are affected by this vulnerability. The vulnerability allows decryption of connection secrets without proper permissions. The official CVE description highlights that this issue could be exploited through the Test Connection endpoint.
The vulnerability has a CVSS score of 6.5, indicating a medium severity level. The vector string for this CVE is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, which denotes a network attack vector, low complexity, and low privileges required for exploitation, with a significant confidentiality impact.
This vulnerability is classified under CWE-862, indicating improper authorization. Organizations using JetBrains TeamCity should take this matter seriously and assess their current versions to ensure they are not vulnerable.
Technical Analysis
The root cause of this vulnerability lies in the insufficient authorization checks for the Test Connection endpoint in JetBrains TeamCity. This oversight allows users with low privileges to access sensitive connection secrets, which should be restricted to authorized personnel only.
The attack vector is network-based, meaning an attacker does not need physical access to the system to exploit this vulnerability. The attack complexity is low, and no user interaction is required, which increases the risk of exploitation.
The confidentiality impact is rated as high, as an attacker could gain access to sensitive secrets. However, there is no impact on integrity or availability, making this a confidentiality-focused vulnerability.
Risk & Impact Analysis
The real-world risk associated with this vulnerability is significant, especially for organizations relying on JetBrains TeamCity to manage their CI/CD pipelines. The capability to decrypt connection secrets could lead to unauthorized access to critical infrastructure, which may result in severe consequences, including data breaches or system compromise.
The potential blast radius is notable, as attackers could exploit this vulnerability to access sensitive information across interconnected systems, thereby escalating their attack surface significantly. The urgency for remediation is underscored by the medium CVSS score and the fact that it is not currently listed in the KEV (Known Exploited Vulnerabilities) database.
Organizations should schedule remediation as part of their priority patch cycle, particularly focusing on upgrading to JetBrains TeamCity version 2024.12.1 or later.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is JetBrains TeamCity 2024.12.1 and prior. Organizations should ensure they upgrade to the latest version to mitigate this vulnerability.
Mitigation & Remediation
Organizations must patch their JetBrains TeamCity installations to version 2024.12.1 or later to close this vulnerability. If immediate patching is not feasible, organizations should consider implementing workarounds such as restricting access to the Test Connection endpoint.
Additional measures to harden security could include limiting network access controls and monitoring logs for any unauthorized access attempts.
For a comprehensive review of security measures, organizations may refer to the penetration testing services offered by AppSecure.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor their logs for any unusual access patterns, especially around the Test Connection endpoint. Specific indicators may include unauthorized access attempts to sensitive connection secrets.
Security teams should also look for behavioral anomalies that may indicate unauthorized actions, such as repeated access attempts or unusual account activity.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the importance of proper authorization checks in software development. As organizations continue to adopt CI/CD practices, ensuring that sensitive secrets are adequately protected becomes crucial.
This vulnerability represents a pattern of oversight in security practices that can lead to significant risks if not addressed. It serves as a reminder for security teams to regularly assess their applications and ensure that proper security measures are implemented.
For further insights into secure coding practices and application security assessments, organizations can explore the following resources: penetration testing methodology, vulnerability management program design, and API penetration testing guidelines.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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