Joomla! 3.8.3: Privilege Escalation via SQL Injection

6 Feb 2018 by Karim El Ouerghemmi
Joomla! Privilege Escalation via SQL Injection

Joomla! is one of the biggest players in the market of content management systems. Its easy installation, usage, and extensibility make it the second most used CMS on the web next to WordPress1. Last year, our PHP static code analysis solution unveiled a rare LDAP injection vulnerability within the 500,000 lines of Joomla! code. This LDAP injection vulnerability, explained in our previous blog post, allowed attackers to fully take over Joomla! <= v3.7.5 installations that rely on LDAP for authentication.

Recent updates to our analysis engine lead to the discovery of a new vulnerability in the Joomla! core affecting versions prior to 3.8.4. RIPS discovered a second-order SQL injection that could be used by attackers to leverage lower permissions and to escalate them into full admin permissions. This previously unknown vulnerability was disclosed to the Joomla! security team who released a security fix on the 30th of January 2018.

Read More ...