CVE-2022-31788
📋 TL;DR
This vulnerability allows attackers to execute arbitrary SQL commands via the ClassID parameter in IdeaLMS 2022's chat room access control endpoint. It affects all organizations using vulnerable versions of IdeaLMS 2022, potentially exposing sensitive database information. The SQL injection occurs through insufficient input validation in the pathname parameter.
💻 Affected Systems
- IdeaLMS 2022
📦 What is this software?
Idealms by Ideaco
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including user credentials, personal data, administrative access, and potential remote code execution on the database server.
Likely Case
Data exfiltration of user information, course materials, and potentially authentication bypass to access restricted areas.
If Mitigated
Limited information disclosure if database permissions are properly restricted and input validation is implemented.
🎯 Exploit Status
Multiple public proof-of-concept examples exist showing SQL injection payloads. Exploitation requires no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not provided in CVE references
Restart Required: No
Instructions:
1. Contact IdeaLMS vendor for patch information
2. Apply vendor-provided security update
3. Test functionality after patching
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns in URL parameters
# Example ModSecurity rule:
SecRule ARGS_GET "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
# Example naxsi rule:
MainRule "str:ClassID" "msg:SQLi in ClassID" "mz:ARGS" "s:$SQLI:8" id:1001;
URL Rewrite/Block
allBlock or restrict access to vulnerable endpoint
# Apache:
RewriteRule ^IdeaLMS/ChatRoom/ClassAccessControl/ - [F]
# Nginx:
location ~ ^/IdeaLMS/ChatRoom/ClassAccessControl/ { return 403; }
# IIS:
<rule name="Block Vulnerable Endpoint">
<match url="^IdeaLMS/ChatRoom/ClassAccessControl/" />
<action type="AbortRequest" />
</rule>
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in application code
- Deploy network segmentation to isolate IdeaLMS server from sensitive databases
🔍 How to Verify
Check if Vulnerable:
Test with SQL injection payload: Access /IdeaLMS/ChatRoom/ClassAccessControl/6?isBigBlueButton=0&ClassID=1' OR '1'='1 and check for SQL errors or unexpected behaviorCheck Version:
Check IdeaLMS admin panel or application configuration files for version informationVerify Fix Applied:
Attempt same SQL injection payload after remediation - should receive proper error handling or rejection without SQL errors📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database query patterns from web server IP
- Multiple failed requests to /IdeaLMS/ChatRoom/ClassAccessControl/ with SQL keywords
Network Indicators:
- HTTP requests containing SQL keywords (UNION, SELECT, INSERT) in ClassID parameter
- Abnormal traffic patterns to database server from web application
SIEM Query:
source="web_logs" AND (url="*ClassAccessControl*" AND (param="*ClassID=*'*" OR param="*ClassID=*%27*" OR param="*ClassID=* UNION *" OR param="*ClassID=* SELECT *"))