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critical·Product Based Web Vulnerabilities·Updated Jan 8, 2024

CVE-2023-42793 Scanner

Detects 'Authentication Bypass' vulnerability in JetBrains TeamCity affects v. before 2023.05.4.

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsdomain, ipv4, subdomain
CostFree
2.1k
Times Used
continuous scan runs
4.7k
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
🔴
CISA Known Exploited Vulnerability
This CVE is actively exploited in the wild. CISA mandates federal agencies to patch immediately.
CVECVE-2023-42793
9.8
CVSScritical
Exploitable remotely over the internet · no authentication required.

In JetBrains TeamCity before 2023.05.4 authentication bypass leading to RCE on TeamCity Server was possible

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
TeamCityby JetBrains
AFFECTED< 2023.05.4SAFE ✓≥ 2023.05.4
Updated Aug 22, 2026View on NVD →
Detail

JetBrains TeamCity is a popular Continuous Integration and Deployment (CI/CD) system that helps software development teams to automate building, testing, and deploying their applications. It is widely used to streamline the development process and make it more efficient. The JetBrains TeamCity software is designed to be a centralized hub for development activities, making it easier for developers to work together and share code effectively.

One of the most significant vulnerabilities detected in JetBrains TeamCity is CVE-2023-42793, which was identified in the software before version 2023.05.4. This vulnerability allowed attackers to bypass authentication and carry out Remote Code Execution (RCE) on the TeamCity server. It could be exploited by an attacker to gain unauthorized access to the system and potentially gain full control over the server.

Exploiting the CVE-2023-42793 vulnerability could lead to a range of consequences, including the theft of sensitive data or the manipulation and destruction of the entire system. RCE vulnerabilities are particularly damaging as they allow an attacker to execute malicious code on the server, which could potentially lead to the complete compromise of the system.

The s4e.io platform offers invaluable protection against such vulnerabilities by providing comprehensive threat monitoring and detection capabilities. With its pro features, our platform can help you stay ahead of potential threats and vulnerabilities in your digital assets. You can sign up to our platform and gain access to crucial security intelligence and analytical reports to secure your systems and protect against any future attacks. By staying informed and up-to-date with security threats, you can ensure your organization's security posture remains robust and effective.

 

REFERENCES

Solution Advice

The following measures can be taken to protect against the CVE-2023-42793 vulnerability:

  • Update TeamCity software to the latest available version
  • Implement two-factor authentication
  • Consider restricting access to the TeamCity server to trusted IPs only
  • Monitor logs and audit trails for suspicious activity
  • Regularly perform security assessments and penetration testing to identify and address vulnerabilities

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