CVE-2019-25751 Cmsjunkie CVE debrief

Who should care

Administrators and security teams responsible for Joomla installations, particularly those using the J-ClassifiedsManager component, should be aware of this vulnerability. Additionally, security professionals and researchers interested in SQL injection vulnerabilities and Joomla security should take note.

Technical summary

The CVE-2019-25751 vulnerability is caused by inadequate input validation in the J-ClassifiedsManager component. Specifically, the displayads component does not properly sanitize user input through POST parameters, allowing attackers to inject malicious SQL code. The affected parameters are categorySearch, adType, and citySearch. This vulnerability can be exploited by unauthenticated attackers, making it a significant concern for Joomla site administrators.

Defensive priority

High priority due to high CVSS score and potential for data breaches

Recommended defensive actions

• Apply the latest patch or update for J-ClassifiedsManager to version 3.0.6 or later
• Limit exposure by restricting access to the displayads component
• Monitor Joomla site logs for suspicious SQL injection attempts
• Implement web application firewall (WAF) rules to detect and prevent SQL injection attacks
• Conduct regular vulnerability scans and penetration testing to identify potential weaknesses

Evidence notes

The primary evidence for this CVE comes from the NVD and CVE.org records. The vulnerability is confirmed to exist in J-ClassifiedsManager 3.0.5, and the affected parameters are categorySearch, adType, and citySearch. Defenders should verify the version of J-ClassifiedsManager installed on their Joomla sites and check for any suspicious activity in their site logs.

Official resources