CVE-2020-14160 : What You Need to Know

An SSRF vulnerability in Gotenberg through version 6.2.1 allows remote attackers to read local files or fetch intranet resources.

Understanding CVE-2020-14160

This CVE involves a Server-Side Request Forgery (SSRF) vulnerability in Gotenberg.

What is CVE-2020-14160?

Gotenberg through version 6.2.1 is susceptible to SSRF, enabling remote attackers to access local files and intranet resources.

The Impact of CVE-2020-14160

The vulnerability permits unauthorized access to sensitive information, posing a risk of data leakage and unauthorized data retrieval.

Technical Details of CVE-2020-14160

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The SSRF flaw in Gotenberg allows attackers to manipulate remote URLs for PDF conversion, leading to unauthorized access to local files and intranet resources.

Affected Systems and Versions

Product: Gotenberg
Vendor: N/A
Versions affected: Up to 6.2.1

Exploitation Mechanism

Attackers exploit the SSRF vulnerability by crafting malicious requests to the PDF conversion feature, tricking the server into fetching unauthorized resources.

Mitigation and Prevention

Protect your systems from CVE-2020-14160 with these mitigation strategies.

Immediate Steps to Take

Implement input validation to restrict URLs in the PDF conversion feature.
Apply filters to prevent access to internal resources.
Monitor and log outgoing requests for suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate developers and administrators on secure coding practices.
Keep software and libraries updated to patch known vulnerabilities.

Patching and Updates

Update Gotenberg to version 6.2.2 or later to eliminate the SSRF vulnerability.
Stay informed about security advisories and promptly apply patches to secure your systems.