CVE-2021-44657 : Vulnerability Insights and Analysis

In StackStorm versions prior to 3.6.0, the jinja interpreter was not run in sandbox mode and thus allows execution of unsafe system commands. Learn more about the impact, technical details, and mitigation steps related to this CVE.

Understanding CVE-2021-44657

What is CVE-2021-44657?

CVE-2021-44657 is a vulnerability in StackStorm versions prior to 3.6.0 that allows the execution of unsafe system commands due to the jinja interpreter not running in sandbox mode by default.

The Impact of CVE-2021-44657

This vulnerability enables attackers to execute potentially harmful system commands, posing a security risk to affected systems.

Technical Details of CVE-2021-44657

Vulnerability Description

In StackStorm versions prior to 3.6.0, jinja interpreter lacks sandbox mode, allowing execution of unsafe system commands.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability arises from jinja interpreter not enabling sandboxed mode by default, which leads to the execution of unsafe system commands.

Mitigation and Prevention

Immediate Steps to Take

Update StackStorm to version 3.6.0 or newer to mitigate the vulnerability.
Review and restrict access to critical system commands.
Monitor system logs for any unusual or unauthorized activities.

Long-Term Security Practices

Implement regular security audits and assessments.
Educate users on safe coding practices to prevent code injection vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.