CVE-2024-57459
📋 TL;DR
A time-based SQL injection vulnerability in CloudClassroom PHP Project 1.0 allows attackers to execute arbitrary SQL commands by manipulating the myds parameter in mydetailsstudent.php. This can lead to unauthorized data access, modification, or deletion. Organizations using CloudClassroom PHP Project 1.0 are affected.
💻 Affected Systems
- CloudClassroom PHP Project
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, modification, or deletion; potential authentication bypass; server compromise via SQL injection to file system access.
Likely Case
Unauthorized access to student/teacher data, grade manipulation, personal information theft, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing successful exploitation.
🎯 Exploit Status
Time-based SQL injection requires basic SQL knowledge; public proof-of-concept available in GitHub gist.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Review the vulnerable mydetailsstudent.php file. 2. Replace raw SQL queries with parameterized prepared statements. 3. Implement proper input validation for the myds parameter. 4. Test the fix thoroughly before deployment.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to only accept expected values for the myds parameter
// In mydetailsstudent.php, add before SQL query:
$myds = filter_var($_GET['myds'], FILTER_VALIDATE_INT);
if (!$myds) { die('Invalid input'); }
Web Application Firewall Rule
linuxBlock SQL injection patterns targeting the myds parameter
# ModSecurity rule:
SecRule ARGS:myds "@detectSQLi" "id:1001,phase:2,deny,status:403,msg:'SQL Injection Attempt'"
# nginx WAF rule:
location ~* \.php$ { set $block_sqli 0; if ($args ~* "(?i)(union|select|sleep|benchmark)") { set $block_sqli 1; } if ($block_sqli = 1) { return 403; } }
🧯 If You Can't Patch
- Implement network segmentation to isolate the CloudClassroom server from sensitive databases
- Deploy a web application firewall with SQL injection detection rules
🔍 How to Verify
Check if Vulnerable:
Test the myds parameter with time-based payloads: mydetailsstudent.php?myds=1' AND SLEEP(5)--Check Version:
Check project documentation or version.php file if availableVerify Fix Applied:
Attempt SQL injection payloads and verify they are rejected or properly sanitized without causing delays📡 Detection & Monitoring
Log Indicators:
- Unusual long response times for mydetailsstudent.php requests
- SQL error messages in application logs
- Multiple requests with SQL keywords in parameters
Network Indicators:
- HTTP requests containing SQL injection patterns in GET parameters
- Unusual database query patterns from application server
SIEM Query:
source="web_logs" AND uri="*mydetailsstudent.php*" AND (param="*sleep*" OR param="*benchmark*" OR param="*union*select*")