CVE-2019-3396 Explained : Impact and Mitigation
Learn about CVE-2019-3396 affecting Atlassian Confluence Server versions before 6.6.12, between 6.7.0 and 6.12.3, between 6.13.0 and 6.13.3, and between 6.14.0 and 6.14.2. Discover the impact, technical details, and mitigation steps.
Atlassian Confluence Server versions before 6.6.12, between 6.7.0 and 6.12.3, between 6.13.0 and 6.13.3, and between 6.14.0 and 6.14.2 are affected by a security vulnerability in the Widget Connector macro allowing remote code execution.
Understanding CVE-2019-3396
This CVE involves a Server-Side Template Injection vulnerability in Atlassian Confluence Server.
What is CVE-2019-3396?
The Widget Connector macro in Atlassian Confluence Server has a security vulnerability that allows remote attackers to perform path traversal and remote code execution.
The Impact of CVE-2019-3396
This vulnerability can be exploited by attackers to execute remote code on a Confluence Server or Data Center instance through server-side template injection.
Technical Details of CVE-2019-3396
Atlassian Confluence Server is affected by a critical security flaw in the Widget Connector macro.
Vulnerability Description
The vulnerability allows remote attackers to execute code on the server through path traversal and server-side template injection.
Affected Systems and Versions
- Confluence Server versions before 6.6.12
- Versions between 6.7.0 and 6.12.3
- Versions between 6.13.0 and 6.13.3
- Versions between 6.14.0 and 6.14.2
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious code through the Widget Connector macro, leading to remote code execution.
Mitigation and Prevention
It is crucial to take immediate action to secure systems vulnerable to CVE-2019-3396.
Immediate Steps to Take
- Update Confluence Server to the fixed versions: 6.6.12, 6.12.3, 6.13.3, and 6.14.2
- Monitor for any unusual activities on the server
- Implement network segmentation to limit the impact of potential attacks
Long-Term Security Practices
- Regularly update and patch software to prevent known vulnerabilities
- Conduct security audits and penetration testing to identify and address weaknesses
- Educate users on safe computing practices to prevent social engineering attacks
Patching and Updates
- Apply the latest security patches provided by Atlassian to address the vulnerability