CVE-2021-43829 : Exploit Details and Defense Strategies

PatrOwl is a free and open-source solution for orchestrating Security Operations. In versions prior to 1.7.7, PatrowlManager unrestrictly handles upload files in the findings import feature, allowing for a vulnerability that can lead to XSS attacks and other code injections. Users are advised to update to version 1.7.7 to mitigate this issue.

Understanding CVE-2021-43829

What is CVE-2021-43829?

CVE-2021-43829 pertains to the uncontrolled upload of files in PatrowlManager versions below 1.7.7, which can result in severe security risks like XSS attacks and potential code injection.

The Impact of CVE-2021-43829

The vulnerability presents a high severity risk with a CVSS base score of 7.4. It can lead to XSS attacks and other code injections, compromising the integrity and confidentiality of the system.

Technical Details of CVE-2021-43829

Vulnerability Description

PatrowlManager versions prior to 1.7.7 allow for unrestricted upload of files via the findings import feature, exposing the system to malicious file uploads and potential XSS attacks.

Affected Systems and Versions

Product: PatrowlManager
Vendor: Patrowl
Versions Affected: < 1.7.7

Exploitation Mechanism

The vulnerability occurs due to the lack of proper restrictions on file uploads, enabling attackers to upload harmful files leading to XSS attacks and code injection.

Mitigation and Prevention

Immediate Steps to Take

Update to version 1.7.7 of PatrowlManager immediately.
Avoid importing findings with potentially harmful files.

Long-Term Security Practices

Regularly monitor and update software patches.
Implement proper input validation and file upload restrictions.
Conduct security audits and penetration testing periodically.

Patching and Updates

Check the official release notes and security advisories for PatrowlManager to stay informed about security patches and updates.