CVE-2019-10383 : Security Advisory and Response
Learn about CVE-2019-10383, a stored cross-site scripting vulnerability in Jenkins versions 2.191 and earlier, allowing attackers to inject malicious HTML and JavaScript. Find mitigation steps and preventive measures here.
A stored cross-site scripting vulnerability in Jenkins versions 2.191 and earlier, as well as LTS versions 2.176.2 and earlier, allowed attackers with Overall/Administer permission to manipulate the update site URL, injecting arbitrary HTML and JavaScript into the update center web pages.
Understanding CVE-2019-10383
This CVE involves a stored cross-site scripting vulnerability in Jenkins that could be exploited by attackers with specific permissions.
What is CVE-2019-10383?
- Attackers with Overall/Administer permission could exploit a stored cross-site scripting vulnerability in Jenkins versions 2.191 and earlier, as well as LTS versions 2.176.2 and earlier.
- This vulnerability allowed manipulation of the update site URL, enabling the injection of desired HTML and JavaScript into the web pages of the update center.
The Impact of CVE-2019-10383
- Attackers could potentially execute malicious scripts within the context of a user's session, leading to various security risks.
Technical Details of CVE-2019-10383
This section provides more technical insights into the vulnerability.
Vulnerability Description
- The vulnerability in Jenkins versions 2.191 and earlier, as well as LTS versions 2.176.2 and earlier, allowed attackers to perform stored cross-site scripting attacks.
Affected Systems and Versions
- Affected Product: Jenkins
- Vendor: Jenkins project
- Vulnerable Versions: 2.191 and earlier, LTS 2.176.2 and earlier
Exploitation Mechanism
- Attackers with Overall/Administer permission could exploit the vulnerability by manipulating the update site URL to inject malicious HTML and JavaScript.
Mitigation and Prevention
Protecting systems from CVE-2019-10383 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Upgrade Jenkins to a non-vulnerable version to mitigate the risk.
- Restrict Overall/Administer permissions to trusted users only.
Long-Term Security Practices
- Regularly monitor and audit Jenkins configurations and plugins for security vulnerabilities.
- Educate users on safe practices to prevent cross-site scripting attacks.
Patching and Updates
- Apply security patches and updates provided by Jenkins to address the vulnerability effectively.