CVE-2018-1000170 : What You Need to Know
Learn about CVE-2018-1000170, a cross-site scripting vulnerability in Jenkins versions 2.115 and older, allowing attackers to execute malicious JavaScript in users' browsers. Find mitigation steps and patching details.
Jenkins versions 2.115 and older, as well as LTS versions 2.107.1 and older, have a cross-site scripting vulnerability that can be exploited by attackers with specific permissions.
Understanding CVE-2018-1000170
This CVE identifies a cross-site scripting vulnerability in Jenkins versions 2.115 and older, as well as LTS versions 2.107.1 and older.
What is CVE-2018-1000170?
This vulnerability allows attackers with Job/Configure and/or Job/Create permission to execute JavaScript in another user's browser by creating a malicious item name.
The Impact of CVE-2018-1000170
- Attackers can inject and execute malicious JavaScript code in the browsers of other users interacting with the Jenkins interface.
Technical Details of CVE-2018-1000170
Jenkins versions 2.115 and older, as well as LTS versions 2.107.1 and older, are affected by this vulnerability.
Vulnerability Description
- Vulnerability Type: Cross-site scripting
- Affected Files: confirmationList.jelly and stopButton.jelly
Affected Systems and Versions
- Jenkins versions 2.115 and older
- LTS versions 2.107.1 and older
Exploitation Mechanism
- Attackers with Job/Configure and/or Job/Create permission can exploit this vulnerability by creating an item name containing JavaScript.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Update Jenkins to the latest version that includes a patch for this vulnerability.
- Restrict Job/Configure and Job/Create permissions to trusted users only.
Long-Term Security Practices
- Regularly monitor and update Jenkins and its plugins to ensure the latest security patches are applied.
- Educate users on safe coding practices and the risks of cross-site scripting vulnerabilities.
- Implement security scanning tools to detect and prevent such vulnerabilities.
Patching and Updates
- Jenkins has released security advisories and patches to address this vulnerability. Ensure timely application of these patches to secure your Jenkins installation.