CVE-2022-42889 : Exploit Details and Defense Strategies

Apache Commons Text prior to 1.10.0 allows RCE when applied to untrusted input due to insecure interpolation defaults. See the details below.

Understanding CVE-2022-42889

Apache Commons Text vulnerability allowing remote code execution due to insecure interpolation defaults.

What is CVE-2022-42889?

Apache Commons Text prior to version 1.10.0 is susceptible to remote code execution when processing untrusted input. The library allows dynamic evaluation and expansion of properties through variable interpolation, potentially leading to arbitrary code execution or unintentional contact with external servers.

The Impact of CVE-2022-42889

Applications using affected versions may be exposed to remote code execution or inadvertent communication with remote servers. This poses a severe security risk to systems leveraging Apache Commons Text versions prior to 1.10.0.

Technical Details of CVE-2022-42889

The technical details shed light on the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

Apache Commons Text versions 1.5 to 1.9 utilize default Lookups that can execute arbitrary code or fetch data from remote servers. This presents a significant risk when processing untrusted configuration values, potentially leading to remote code execution.

Affected Systems and Versions

The vulnerability impacts Apache Commons Text versions 1.5 to 1.9, with applications using default interpolation values at risk of exploitation. Users are advised to upgrade to Apache Commons Text 1.10.0 to mitigate this issue.

Exploitation Mechanism

By leveraging the vulnerable default Lookups like "script", "dns", and "url", threat actors can exploit the library to execute malicious code or establish communication with external servers.

Mitigation and Prevention

Learn how to safeguard your systems against CVE-2022-42889 and prevent potential risks.

Immediate Steps to Take

Upgrade to Apache Commons Text 1.10.0 to disable the problematic interpolators and protect your systems from remote code execution and unauthorized server communications.

Long-Term Security Practices

Ensure regular updates of Apache Commons Text and maintain a proactive approach to security to prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security patches and updates released by Apache Software Foundation to address critical vulnerabilities and enhance the security of your systems.