CVE-2022-24803 : Security Advisory and Response

Asciidoctor-include-ext is a standard include processor for Asciidoctor reimplemented as an extension. Learn more about the impact, technical details, and mitigation steps associated with CVE-2022-24803.

Understanding CVE-2022-24803

This CVE identifies a Command Injection vulnerability affecting versions of asciidoctor-include-ext prior to 0.4.0.

What is CVE-2022-24803?

Asciidoctor-include-ext versions before 0.4.0, when processing user-supplied input in AsciiDoc markup, may allow threat actors to execute arbitrary system commands on the host operating system. This risk remains even when

allow-uri-read

is disabled.

The Impact of CVE-2022-24803

The CVSS score for this vulnerability is 10, indicating a critical severity level. The attack has a low complexity, requires no user privileges, and can lead to a complete compromise of confidentiality, integrity, and availability in the system.

Technical Details of CVE-2022-24803

Below are the technical specifics of this vulnerability:

Vulnerability Description

The flaw enables attackers to execute malicious commands on the host OS by leveraging user inputs in AsciiDoc content rendering.

Affected Systems and Versions

Asciidoctor-include-ext versions prior to 0.4.0 are susceptible to this command injection vulnerability.

Exploitation Mechanism

Threat actors can exploit this vulnerability when processing user-supplied content to achieve unauthorized system command execution.

Mitigation and Prevention

Understanding the steps for immediate response and long-term security practices is crucial to mitigate this vulnerability.

Immediate Steps to Take

It is recommended to update asciidoctor-include-ext to version 0.4.0 or higher immediately. Additionally, limit user input capabilities to prevent command injection attacks.

Long-Term Security Practices

Implement secure coding practices, such as input validation and escaping, to prevent future command injection vulnerabilities. Regular security audits and updates are essential for maintaining system security.

Patching and Updates

Refer to the provided security advisories and commits at GitHub for the necessary patches and updates to address this vulnerability.