CVE-2015-4627
📋 TL;DR
CVE-2015-4627 is a SQL injection vulnerability in Pragyan CMS 3.0 that allows attackers to execute arbitrary SQL commands through crafted requests. This affects all Pragyan CMS 3.0 installations, potentially compromising database integrity and confidentiality.
💻 Affected Systems
- Pragyan CMS
📦 What is this software?
Pragyan Cms by Pragyan Cms Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, or full system takeover via SQL injection to RCE chaining.
Likely Case
Unauthorized data access, modification, or deletion of CMS database content including user credentials and site data.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing successful exploitation.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized and this CVE has public proof-of-concept available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.1 or later
Vendor Advisory: https://github.com/delta/pragyan/issues/207
Restart Required: No
Instructions:
1. Backup your current installation. 2. Download Pragyan CMS 3.1 or later from official repository. 3. Replace vulnerable files with patched versions. 4. Test functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation for all user-supplied parameters
Add parameterized queries in PHP code: $stmt = $pdo->prepare('SELECT * FROM users WHERE id = :id'); $stmt->execute(['id' => $userInput]);
Web Application Firewall
allDeploy WAF with SQL injection protection rules
ModSecurity rule: SecRule ARGS "@detectSQLi" "id:942100,phase:2,deny"
🧯 If You Can't Patch
- Isolate the CMS system behind a reverse proxy with strict SQL injection filtering
- Implement network segmentation to limit database access from CMS server only
🔍 How to Verify
Check if Vulnerable:
Check if running Pragyan CMS version 3.0 by examining version files or admin panelCheck Version:
grep -r 'version.*3\.0' /path/to/pragyan/ || cat /path/to/pragyan/version.txtVerify Fix Applied:
Verify installation shows version 3.1 or later and test SQL injection attempts return errors instead of executing📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax in request logs
- Multiple failed login attempts with SQL characters
- Database error messages in web logs
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.)
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND ("UNION" OR "SELECT" OR "INSERT" OR "DELETE") AND status=200