CVE-2019-5097 : Vulnerability Insights and Analysis

A denial-of-service vulnerability exists in the processing of multi-part/form-data requests in the base GoAhead web server application in versions v5.0.1, v4.1.1, and v3.6.5. A specially crafted HTTP request can lead to an infinite loop in the process. The request can be unauthenticated in the form of GET or POST requests and does not require the requested resource to exist on the server.

Understanding CVE-2019-5097

The GoAhead web server application, specifically versions v5.0.1, v4.1.1, and v3.6.5, has a vulnerability that can result in a denial-of-service. This vulnerability occurs when processing multi-part/form-data requests.

What is CVE-2019-5097?

The CVE-2019-5097 vulnerability is a denial-of-service issue in the GoAhead web server application, affecting versions v5.0.1, v4.1.1, and v3.6.5. It allows an attacker to create an infinite loop within the system by sending a carefully crafted HTTP request.

The Impact of CVE-2019-5097

CVSS Base Score: 5.3 (Medium)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Low
This vulnerability can be exploited without authentication, using either a GET or POST request. The requested resource does not need to exist on the server.

Technical Details of CVE-2019-5097

Vulnerability Description

The vulnerability in the GoAhead web server application allows for a denial-of-service attack through an infinite loop triggered by specially crafted HTTP requests.

Affected Systems and Versions

Product: EmbedThis
Versions: v5.0.1, v4.1.1, v3.6.5

Exploitation Mechanism

The vulnerability is exploited by sending a carefully crafted HTTP request, which can create an infinite loop within the system without the need for authentication.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-supplied patches or updates to fix the vulnerability.
Monitor network traffic for any suspicious activity that could indicate exploitation attempts.

Long-Term Security Practices

Regularly update and patch all software and applications to prevent known vulnerabilities.
Implement network security measures to detect and block malicious traffic.

Patching and Updates

Check for updates from the vendor regularly and apply patches promptly to secure the system.