CVE-2020-2219 : Exploit Details and Defense Strategies
Learn about CVE-2020-2219 affecting Jenkins Link Column Plugin versions 1.0 and earlier, allowing stored cross-site scripting attacks. Find mitigation steps and long-term security practices.
Jenkins Link Column Plugin 1.0 and earlier versions are susceptible to a stored cross-site scripting vulnerability due to inadequate URL filtering for links created by users with View/Configure permission.
Understanding CVE-2020-2219
This CVE involves a security issue in the Jenkins Link Column Plugin that allows stored cross-site scripting attacks.
What is CVE-2020-2219?
CVE-2020-2219 is a vulnerability in Jenkins Link Column Plugin versions 1.0 and earlier, enabling attackers to execute malicious scripts in the context of a user's browser.
The Impact of CVE-2020-2219
The vulnerability could lead to unauthorized access, data theft, and potential compromise of the Jenkins environment, posing a significant security risk.
Technical Details of CVE-2020-2219
The technical aspects of the CVE provide insight into the vulnerability and its implications.
Vulnerability Description
Jenkins Link Column Plugin 1.0 and earlier versions lack proper URL filtering for links created by users with View/Configure permission, allowing for stored cross-site scripting attacks.
Affected Systems and Versions
- Product: Jenkins Link Column Plugin
- Vendor: Jenkins project
- Versions Affected: 1.0 and earlier
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious scripts into URLs of links created by authorized users, potentially leading to cross-site scripting attacks.
Mitigation and Prevention
Protecting systems from CVE-2020-2219 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Upgrade Jenkins Link Column Plugin to a patched version that includes URL filtering for user-created links.
- Restrict permissions for creating links to trusted users only.
Long-Term Security Practices
- Regularly monitor and audit plugins for security vulnerabilities.
- Educate users on safe URL practices and the risks of cross-site scripting attacks.
Patching and Updates
- Stay informed about security advisories and updates from Jenkins project.
- Apply patches promptly to address known vulnerabilities and enhance system security.