CVE-2020-2174 : Exploit Details and Defense Strategies

Jenkins AWSEB Deployment Plugin 0.3.19 and earlier versions are affected by a reflected cross-site scripting vulnerability.

Understanding CVE-2020-2174

Jenkins AWSEB Deployment Plugin versions 0.3.19 and below are susceptible to a security issue that allows for cross-site scripting attacks.

What is CVE-2020-2174?

This CVE identifies a vulnerability in Jenkins AWSEB Deployment Plugin versions 0.3.19 and earlier, where certain values displayed during form validation are not properly escaped, leading to a cross-site scripting risk.

The Impact of CVE-2020-2174

The vulnerability could be exploited by attackers to execute malicious scripts in the context of a user's web session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-2174

Jenkins AWSEB Deployment Plugin vulnerability details:

Vulnerability Description

The issue arises from the plugin's failure to escape specific values displayed in form validation output, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

Product: Jenkins AWSEB Deployment Plugin
Vendor: Jenkins project
Versions Affected: <= 0.3.19 (unspecified version type: custom)

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the form validation output, which, when executed, can compromise the security of the application.

Mitigation and Prevention

Steps to address and prevent CVE-2020-2174:

Immediate Steps to Take

Upgrade Jenkins AWSEB Deployment Plugin to a version beyond 0.3.19 to mitigate the vulnerability.
Implement input validation and output encoding to prevent cross-site scripting attacks.

Long-Term Security Practices

Regularly update plugins and software components to patch known vulnerabilities.
Conduct security audits and code reviews to identify and address potential security weaknesses.

Patching and Updates

Stay informed about security advisories and updates from Jenkins project to apply patches promptly and enhance system security.