CVE-2022-31179 : Exploit Details and Defense Strategies

Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on Windows, allowing attackers to omit arguments following their input by including a line feed character in the payload. This CVE highlights the vulnerability of shescape that impacts users utilizing the escape function for cmd.exe on Windows.

Understanding CVE-2022-31179

This section provides comprehensive details about CVE-2022-31179.

What is CVE-2022-31179?

CVE-2022-31179 arises from the insufficient escaping of line feeds for CMD in shescape, making it susceptible to code injection on Windows.

The Impact of CVE-2022-31179

The vulnerability in shescape versions below 1.5.8 poses a high risk to users by enabling attackers to manipulate input for cmd.exe on Windows.

Technical Details of CVE-2022-31179

This section delves into the technical aspects of CVE-2022-31179.

Vulnerability Description

The CVE is classified under CWE-74, involving improper neutralization of special elements in output used by a downstream component ('Injection').

Affected Systems and Versions

Shescape versions prior to 1.5.8 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting a line feed character in the payload to skip input arguments.

Mitigation and Prevention

Learn how to mitigate and prevent vulnerabilities like CVE-2022-31179.

Immediate Steps to Take

Upgrade to shescape version 1.5.8 or later to patch the bug. Alternatively, manually remove line feed characters from user inputs.

Long-Term Security Practices

Educate developers on secure coding practices and regularly update systems to prevent future vulnerabilities.

Patching and Updates

Stay informed about security advisories and apply patches promptly to safeguard systems.