CVE-2019-3395 : What You Need to Know

Atlassian Confluence Server and Data Center are vulnerable to a WebDAV endpoint exploit allowing remote attackers to perform Server-Side Request Forgery.

Understanding CVE-2019-3395

This CVE involves a vulnerability in Atlassian Confluence Server and Data Center that enables attackers to send unauthorized requests through a Server-Side Request Forgery technique.

What is CVE-2019-3395?

Remote attackers can exploit the WebDAV endpoint vulnerability in Atlassian Confluence Server and Data Center. The affected versions range from before 6.6.7 to between 6.9.0 and 6.9.3.

The Impact of CVE-2019-3395

This vulnerability allows attackers to send malicious HTTP and WebDAV requests, potentially leading to unauthorized access and data manipulation.

Technical Details of CVE-2019-3395

Atlassian Confluence Server and Data Center are susceptible to a Server-Side Request Forgery vulnerability.

Vulnerability Description

The WebDAV endpoint in affected versions allows remote attackers to send arbitrary HTTP and WebDAV requests, exploiting Server-Side Request Forgery.

Affected Systems and Versions

Atlassian Confluence Server versions before 6.6.7
Versions between 6.7.0 and 6.8.5
Versions between 6.9.0 and 6.9.3

Exploitation Mechanism

Attackers can leverage the vulnerability to send unauthorized requests from a Confluence Server or Data Center instance through Server-Side Request Forgery.

Mitigation and Prevention

It is crucial to take immediate steps to secure systems and implement long-term security practices to prevent exploitation.

Immediate Steps to Take

Apply patches provided by Atlassian promptly.
Monitor and restrict network access to vulnerable systems.
Educate users on identifying and avoiding suspicious requests.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.
Conduct security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Update Atlassian Confluence Server to the fixed versions: 6.6.7, 6.8.5, and 6.9.3 to address the vulnerability.