CVE-2019-5096 Explained : Impact and Mitigation

A weakness has been identified in the base GoAhead web server application versions v5.0.1, v4.1.1, and v3.6.5, allowing for potential code execution through crafted HTTP requests.

Understanding CVE-2019-5096

This CVE involves a critical vulnerability in the handling of multi-part/form-data requests in the GoAhead web server application.

What is CVE-2019-5096?

The vulnerability in versions v5.0.1, v4.1.1, and v3.6.5 of the GoAhead web server allows for a use-after-free scenario during request processing, potentially leading to code execution.

The Impact of CVE-2019-5096

The vulnerability has a CVSS base score of 9.8, indicating a critical severity level with high impacts on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2019-5096

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability arises from how multi-part/form-data requests are handled, enabling attackers to manipulate heap structures and potentially execute arbitrary code.

Affected Systems and Versions

EmbedThis GoAhead Web Server v5.0.1
EmbedThis GoAhead Web Server v4.1.1
EmbedThis GoAhead Web Server v3.6.5

Exploitation Mechanism

Crafted HTTP requests trigger a use-after-free condition
Allows manipulation of heap structures
Potential for complete code execution

Mitigation and Prevention

Protecting systems from CVE-2019-5096 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches promptly
Monitor network traffic for suspicious activity
Implement strong firewall rules

Long-Term Security Practices

Regularly update and patch software
Conduct security audits and penetration testing

Patching and Updates

Stay informed about security updates from the vendor
Apply patches as soon as they are released