CVE-2023-24435 : What You Need to Know

This CVE-2023-24435 article provides detailed insights into a specific vulnerability affecting the Jenkins GitHub Pull Request Builder Plugin.

Understanding CVE-2023-24435

This section delves into the specific details related to CVE-2023-24435, shedding light on its nature and potential impact.

What is CVE-2023-24435?

CVE-2023-24435 involves a missing permission check in the Jenkins GitHub Pull Request Builder Plugin version 1.42.2 and earlier. This vulnerability allows attackers with Overall/Read permission to connect to a URL specified by the attacker using credentials IDs obtained through another method. This could result in the capture of credentials stored in Jenkins, posing a significant security risk.

The Impact of CVE-2023-24435

The impact of this vulnerability can be severe, as unauthorized attackers may exploit it to access sensitive credentials stored within the Jenkins environment. This could lead to unauthorized access, data breaches, and potential compromise of the Jenkins infrastructure.

Technical Details of CVE-2023-24435

This section provides a deeper insight into the technical aspects of CVE-2023-24435, including how the vulnerability manifests and the systems it affects.

Vulnerability Description

The vulnerability in Jenkins GitHub Pull Request Builder Plugin version 1.42.2 and earlier arises from a missing permission check, enabling attackers with specific permissions to access and connect to URLs with attacker-specified credentials. This loophole facilitates the unauthorized capture of sensitive credentials within the Jenkins environment.

Affected Systems and Versions

The Jenkins GitHub Pull Request Builder Plugin versions up to and including 1.42.2 are impacted by CVE-2023-24435. Users of these versions are at risk of potential exploitation if proper mitigation measures are not implemented.

Exploitation Mechanism

Attackers with Overall/Read permissions can exploit this vulnerability by connecting to a URL specified by the attacker using obtained credentials IDs. Through this method, attackers can gain access to sensitive credentials stored within the Jenkins environment.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2023-24435 is crucial to safeguard systems from potential exploitation and security breaches.

Immediate Steps to Take

Users are advised to upgrade to a patched version of the Jenkins GitHub Pull Request Builder Plugin beyond version 1.42.2 to mitigate the risk posed by CVE-2023-24435. Additionally, restricting permissions and monitoring access control within the Jenkins environment can help prevent unauthorized access.

Long-Term Security Practices

Implementing robust security protocols, such as regular security audits, maintaining up-to-date software versions, and user access restrictions, can enhance the overall security posture of Jenkins instances. Educating users on best security practices is also essential.

Patching and Updates

Regularly monitoring security advisories from Jenkins and promptly applying security patches and updates is crucial to address known vulnerabilities like CVE-2023-24435. Staying proactive in updating software components can help mitigate the risk of potential security incidents.