CVE-2022-0983
📋 TL;DR
This CVE describes an SQL injection vulnerability in Badges code related to configuring criteria. It allows authenticated users with teacher or manager roles to execute arbitrary SQL commands. The vulnerability affects systems running vulnerable versions of the software.
💻 Affected Systems
- Moodle
📦 What is this software?
Extra Packages For Enterprise Linux by Fedoraproject
View all CVEs affecting Extra Packages For Enterprise Linux →
Fedora by Fedoraproject
Fedora by Fedoraproject
Moodle by Moodle
Moodle by Moodle
Moodle by Moodle
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, modification, or deletion, and potential privilege escalation to system-level access.
Likely Case
Unauthorized data access, manipulation of badge criteria, and potential privilege escalation within the application.
If Mitigated
Limited impact due to role-based access controls, but still allows data manipulation within authorized user scope.
🎯 Exploit Status
Exploitation requires authenticated access with teacher or manager privileges. SQL injection vulnerabilities are typically straightforward to exploit once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check specific Moodle security releases for CVE-2022-0983
Vendor Advisory: https://bugzilla.redhat.com/show_bug.cgi?id=2064119
Restart Required: No
Instructions:
1. Update to the latest Moodle version that includes the security fix. 2. Apply any available security patches for your specific Moodle version. 3. Verify the fix by testing badge criteria configuration functionality.
🔧 Temporary Workarounds
Restrict Teacher/Manager Access
allTemporarily remove or restrict teacher and manager role access to badge configuration features
# Moodle role management commands vary by installation
# Use Moodle admin interface to modify role capabilities
Web Application Firewall Rules
allImplement WAF rules to detect and block SQL injection patterns in badge-related requests
# WAF configuration depends on specific solution (ModSecurity, Cloudflare, etc.)
# Example ModSecurity rule: SecRule ARGS "(?i:(union|select|insert|update|delete|drop|alter).*)" \"phase:2,deny,status:403,id:1001\"
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries for all badge configuration functionality
- Enable detailed logging and monitoring for SQL injection attempts on badge-related endpoints
🔍 How to Verify
Check if Vulnerable:
Check Moodle version against security advisories and test badge criteria configuration with SQL injection payloads in a controlled environmentCheck Version:
Check Moodle version via admin interface or config.php fileVerify Fix Applied:
Test badge criteria configuration functionality with SQL injection test payloads after applying patches📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed badge criteria configuration attempts
- Suspicious parameter values in badge-related requests
Network Indicators:
- SQL keywords in badge configuration API requests
- Unusual database query patterns from application servers
SIEM Query:
source="moodle_logs" AND (event="badge_configuration" OR url="*/badge/*") AND (message="*sql*" OR message="*union*" OR message="*select*" OR message="*insert*")🔗 References
- https://bugzilla.redhat.com/show_bug.cgi?id=2064119
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4GRMWBGHOJMFXMTORECQNULJK7ZJJ6Y/
- https://bugzilla.redhat.com/show_bug.cgi?id=2064119
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4GRMWBGHOJMFXMTORECQNULJK7ZJJ6Y/
