CVE-2018-20352 : Vulnerability Insights and Analysis

Cesanta Mongoose Embedded Web Server Library version 6.13 and earlier is vulnerable to a denial of service attack and potential remote code execution.

Understanding CVE-2018-20352

This CVE involves a vulnerability in the mg_cgi_ev_handler function in the Mongoose Embedded Web Server Library.

What is CVE-2018-20352?

The mg_cgi_ev_handler function in Cesanta Mongoose Embedded Web Server Library version 6.13 and earlier has a vulnerability that can lead to a denial of service attack causing application crashes or remote code execution.

The Impact of CVE-2018-20352

The vulnerability can be exploited to crash applications or potentially execute remote code, posing a significant risk to affected systems.

Technical Details of CVE-2018-20352

This section provides more technical insights into the CVE.

Vulnerability Description

The use-after-free vulnerability in the mg_cgi_ev_handler function allows for a denial of service (application crash) or remote code execution.

Affected Systems and Versions

Product: Cesanta Mongoose Embedded Web Server Library
Versions affected: 6.13 and earlier

Exploitation Mechanism

The vulnerability can be exploited by triggering the mg_cgi_ev_handler function, leading to a denial of service or potential remote code execution.

Mitigation and Prevention

Protecting systems from CVE-2018-20352 is crucial to maintaining security.

Immediate Steps to Take

Update to a patched version of the Cesanta Mongoose Embedded Web Server Library.
Monitor for any unusual activity that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Implement network security measures to detect and prevent unauthorized access.

Patching and Updates

Ensure that all systems running the affected versions of the Mongoose Embedded Web Server Library are promptly updated with the latest patches to mitigate the risk of exploitation.