CVE-2023-50044 : Exploit Details and Defense Strategies

A detailed overview of the CVE-2023-50044 vulnerability in Cesanta MJS 2.20.0.

Understanding CVE-2023-50044

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2023-50044?

The CVE-2023-50044 vulnerability exists in Cesanta MJS 2.20.0 and involves an out-of-bounds read issue when a Built-in API name appears in a substring of an input string.

The Impact of CVE-2023-50044

The vulnerability could potentially allow an attacker to read sensitive information or cause a denial of service by triggering the out-of-bounds read.

Technical Details of CVE-2023-50044

Explore the technical aspects of the CVE-2023-50044 vulnerability in Cesanta MJS 2.20.0.

Vulnerability Description

The vulnerability arises from a getprop_builtin_foreign function in Cesanta MJS 2.20.0 that mishandles Built-in API names in input substrings, leading to an out-of-bounds read.

Affected Systems and Versions

All versions of Cesanta MJS 2.20.0 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating input strings to trigger the out-of-bounds read, potentially leading to information disclosure or service disruption.

Mitigation and Prevention

Learn about the recommended steps to mitigate and prevent the CVE-2023-50044 vulnerability.

Immediate Steps to Take

Immediately cease using Cesanta MJS 2.20.0 in production environments and switch to a patched version or alternative solution.

Long-Term Security Practices

Adopt secure coding practices and regularly update software to prevent similar vulnerabilities in the future.

Patching and Updates

Monitor for security advisories from Cesanta and apply relevant patches or updates promptly to address the CVE-2023-50044 vulnerability.