CVE-2019-10100 : What You Need to Know

In versions older than 1.8.1.3 of the JetBrains YouTrack Confluence plugin, a Server Side Template Injection vulnerability allowed attackers to execute remote code by manipulating an Issue macro in a Confluence page.

Understanding CVE-2019-10100

What is CVE-2019-10100?

In JetBrains YouTrack Confluence plugin versions before 1.8.1.3, attackers could exploit a Server Side Template Injection vulnerability by inserting an Issue macro into a Confluence page.

The Impact of CVE-2019-10100

The vulnerability enabled attackers to execute code remotely by leveraging a valid id field and specially crafted code in the link-text-template field.

Technical Details of CVE-2019-10100

Vulnerability Description

Attackers could exploit the Server Side Template Injection vulnerability in older plugin versions by manipulating an Issue macro in a Confluence page.

Affected Systems and Versions

Product: JetBrains YouTrack Confluence plugin
Versions affected: Older than 1.8.1.3

Exploitation Mechanism

Attackers inserted an Issue macro into a Confluence page
Leveraged a valid id field and crafted code in the link-text-template field

Mitigation and Prevention

Immediate Steps to Take

Update the JetBrains YouTrack Confluence plugin to version 1.8.1.3 or newer
Monitor for any unusual activities on Confluence pages

Long-Term Security Practices

Regularly update all software and plugins to the latest versions
Educate users on safe practices to prevent code injection attacks

Patching and Updates

Apply security patches promptly to mitigate known vulnerabilities