CVE-2018-1000177 : Vulnerability Insights and Analysis

The Jenkins S3 Plugin version 0.10.12 and older contain a cross-site scripting vulnerability that allows attackers to execute JavaScript code in users' browsers.

Understanding CVE-2018-1000177

What is CVE-2018-1000177?

A cross-site scripting vulnerability exists in the Jenkins S3 Plugin version 0.10.12 and older, enabling attackers to insert JavaScript code into file names of uploaded files.

The Impact of CVE-2018-1000177

This vulnerability allows attackers to execute malicious JavaScript code in the browsers of other users who interact with the affected interface.

Technical Details of CVE-2018-1000177

Vulnerability Description

The vulnerability is present in the "jobMain.jelly" file within the "src/main/resources/hudson/plugins/s3/S3ArtifactsProjectAction/" directory.

Affected Systems and Versions

Product: Jenkins S3 Plugin
Vendor: N/A
Versions affected: 0.10.12 and older

Exploitation Mechanism

Attackers can manipulate file names of uploaded files to include JavaScript code, which is then executed in the browsers of other users during specific actions.

Mitigation and Prevention

Immediate Steps to Take

Upgrade Jenkins S3 Plugin to a version beyond 0.10.12 to mitigate the vulnerability.
Avoid interacting with untrusted files or links within the Jenkins interface.

Long-Term Security Practices

Regularly update plugins and software to the latest versions to patch security flaws.
Educate users on safe browsing practices and the risks of interacting with potentially malicious content.

Patching and Updates

Ensure that all software components, including plugins like Jenkins S3 Plugin, are regularly updated to address known vulnerabilities.