CVE-2018-1000202 : Vulnerability Insights and Analysis

The Jenkins Groovy Postbuild Plugin version 2.3.1 and earlier contain a persistent cross-site scripting vulnerability that allows attackers to inject malicious JavaScript code.

Understanding CVE-2018-1000202

This CVE involves a persistent cross-site scripting vulnerability in Jenkins Groovy Postbuild Plugin version 2.3.1 and older, enabling attackers to execute arbitrary JavaScript code in users' browsers.

What is CVE-2018-1000202?

The vulnerability in Jenkins Groovy Postbuild Plugin version 2.3.1 and earlier allows attackers to manipulate build badge content to inject and execute JavaScript code in other users' browsers.

The Impact of CVE-2018-1000202

This vulnerability can be exploited by malicious actors to execute arbitrary JavaScript code in the context of another user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-1000202

The technical aspects of the CVE include:

Vulnerability Description

Jenkins Groovy Postbuild Plugin version 2.3.1 and earlier are susceptible to persistent cross-site scripting.

Affected Systems and Versions

Product: Jenkins Groovy Postbuild Plugin
Vendor: Jenkins
Versions affected: 2.3.1 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating build badge content to inject malicious JavaScript code.

Mitigation and Prevention

To address CVE-2018-1000202, consider the following steps:

Immediate Steps to Take

Update Jenkins Groovy Postbuild Plugin to the latest version.
Monitor and restrict user inputs to prevent injection attacks.

Long-Term Security Practices

Implement secure coding practices to mitigate cross-site scripting vulnerabilities.
Regularly audit and review code for potential security flaws.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.