CVE-2022-30927
📋 TL;DR
Simple Task Scheduling System 1.0 contains an unauthenticated SQL injection vulnerability in the 'id' parameter when using MySQL. Attackers can execute arbitrary SQL commands on the database, potentially compromising the entire application. This affects all deployments using the vulnerable version with MySQL.
💻 Affected Systems
- Simple Task Scheduling System
📦 What is this software?
Simple Task Scheduling System by Simple Task Scheduling System Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, privilege escalation, and potential remote code execution via database functions.
Likely Case
Data exfiltration, authentication bypass, and unauthorized access to sensitive task scheduling data.
If Mitigated
Limited impact with proper input validation and database permissions restricting attacker capabilities.
🎯 Exploit Status
Public exploit code available on GitHub. SQL injection is straightforward with no authentication required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None
Vendor Advisory: None
Restart Required: No
Instructions:
No official patch available. Manually implement input validation and parameterized queries in the source code.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block malicious requests.
Database User Privilege Reduction
linuxRestrict database user permissions to only necessary operations.
REVOKE ALL PRIVILEGES ON database.* FROM 'app_user'@'%';
GRANT SELECT, INSERT, UPDATE, DELETE ON database.* TO 'app_user'@'%';
🧯 If You Can't Patch
- Isolate the system from internet access and restrict to internal network only.
- Implement strict network segmentation and monitor all database connections.
🔍 How to Verify
Check if Vulnerable:
Test the 'id' parameter with SQL injection payloads like: id=1' OR '1'='1Check Version:
Check the application version in the source code or documentation files.Verify Fix Applied:
Verify that SQL injection payloads no longer work and return proper error handling.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts from single IP
- Database queries with suspicious patterns
Network Indicators:
- Unusual database connection patterns
- HTTP requests with SQL keywords in parameters
SIEM Query:
source=web_logs AND (url="*id=*'*" OR url="*id=*%27*")🔗 References
- https://github.com/ykosan1/Simple-Task-Scheduling-System-id-SQL-Injection-Unauthenticated
- https://www.sourcecodester.com/php/15328/simple-task-scheduler-system-phpoop-free-source-code.html
- https://www.sourcecodester.com/sites/default/files/download/oretnom23/tss.zip
- https://github.com/ykosan1/Simple-Task-Scheduling-System-id-SQL-Injection-Unauthenticated
- https://www.sourcecodester.com/php/15328/simple-task-scheduler-system-phpoop-free-source-code.html
- https://www.sourcecodester.com/sites/default/files/download/oretnom23/tss.zip
