CVE-2020-2139 : Exploit Details and Defense Strategies
Learn about CVE-2020-2139 affecting Jenkins Cobertura Plugin 1.15 and earlier versions, allowing attackers to overwrite files on the Jenkins master file system. Find mitigation steps and prevention measures.
Jenkins Cobertura Plugin 1.15 and earlier versions are vulnerable to an arbitrary file write issue, allowing attackers to overwrite files on the Jenkins master file system.
Understanding CVE-2020-2139
This CVE involves a security vulnerability in the Jenkins Cobertura Plugin that could be exploited by attackers to manipulate file contents.
What is CVE-2020-2139?
An arbitrary file write vulnerability in Jenkins Cobertura Plugin 1.15 and earlier versions enables attackers with control over the coverage report file contents to overwrite any file on the Jenkins master file system.
The Impact of CVE-2020-2139
The vulnerability poses a significant risk as it allows malicious actors to compromise the integrity and confidentiality of files on the Jenkins server.
Technical Details of CVE-2020-2139
The technical aspects of the CVE provide insights into the vulnerability and its implications.
Vulnerability Description
The vulnerability in Jenkins Cobertura Plugin 1.15 and earlier versions permits attackers to overwrite files on the Jenkins master file system by manipulating coverage report file contents.
Affected Systems and Versions
- Product: Jenkins Cobertura Plugin
- Vendor: Jenkins project
- Versions Affected: <= 1.15
Exploitation Mechanism
Attackers who can control the coverage report file contents can exploit this vulnerability to overwrite any file on the Jenkins master file system.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2020-2139.
Immediate Steps to Take
- Update Jenkins Cobertura Plugin to a secure version that addresses the vulnerability.
- Monitor file system activities for any suspicious changes.
Long-Term Security Practices
- Regularly review and update Jenkins plugins to ensure they are free from known vulnerabilities.
- Implement access controls and restrictions to limit file system manipulation.
Patching and Updates
- Apply patches provided by Jenkins project to fix the arbitrary file write vulnerability in the Cobertura Plugin.