CVE-2017-20254 Gegabyte CVE debrief

Who should care

Joomla! site administrators, defenders, and security teams should be aware of this vulnerability. They should check if their sites use the affected User Bench component and take immediate action to patch or mitigate the vulnerability. Additionally, security teams responsible for monitoring and incident response should be prepared to detect and respond to potential exploitation attempts.

Technical summary

The CVE-2017-20254 vulnerability is caused by inadequate input validation in the userid parameter of the Joomla! Component User Bench 1.0. This allows unauthenticated attackers to inject malicious SQL code, potentially leading to data breaches and unauthorized access to sensitive information. The vulnerability is characterized by the following: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. The weakness associated with this vulnerability is CWE-89, 'SQL Injection'.

Defensive priority

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

Recommended defensive actions

• Apply the official patch or update Joomla! Component User Bench to a version that fixes the SQL injection vulnerability
• Review and restrict access to the userid parameter in GET requests to index.php
• Implement input validation and sanitization for user input
• Monitor Joomla! site logs for suspicious activity and potential exploitation attempts
• Consider using a web application firewall (WAF) to detect and block SQL injection attacks

Evidence notes

The primary evidence for this vulnerability comes from the NVD and CVE.org records. The vulnerability affects Joomla! Component User Bench 1.0. Defenders should verify the version of the component installed on their Joomla! sites and check for any available patches or updates. The official CVE record and NVD detail provide additional information on the vulnerability.

Official resources