CVE-2022-26627
📋 TL;DR
Online Project Time Management System v1.0 contains an arbitrary file write vulnerability that allows attackers to upload crafted HTML files and achieve remote code execution. This affects all users running the vulnerable version of this web application. Attackers can compromise the entire system if successful.
💻 Affected Systems
- Online Project Time Management System
📦 What is this software?
Online Project Time Management System by Online Project Time Management System Project
View all CVEs affecting Online Project Time Management System →
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the server, data theft, lateral movement, and persistent backdoor installation.
Likely Case
Remote code execution leading to web shell deployment, data exfiltration, and potential ransomware deployment.
If Mitigated
Attack prevented through proper file upload restrictions and web application firewalls, with only attempted exploitation logged.
🎯 Exploit Status
Public GitHub repository contains proof-of-concept demonstrating the vulnerability. Exploitation requires only web access to the vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative software or implementing strict workarounds.
🔧 Temporary Workarounds
Restrict File Upload Types
allConfigure web server to only allow specific safe file extensions and implement server-side validation.
# Configure web server (e.g., Apache) to block .html uploads
# Add to .htaccess: <FilesMatch "\.(html|htm|php)$">
# Order Allow,Deny
# Deny from all
# </FilesMatch>
Implement Web Application Firewall Rules
allBlock malicious file upload attempts using WAF rules.
# Example ModSecurity rule:
# SecRule FILES_TMPNAMES "@rx \.(html|htm|php)$" \
# "id:1001,phase:2,deny,msg:'Blocked malicious file upload'"
🧯 If You Can't Patch
- Take the system offline immediately until proper security controls can be implemented.
- Implement network segmentation to isolate the vulnerable system from critical assets.
🔍 How to Verify
Check if Vulnerable:
Check if you're running Online Project Time Management System v1.0. Attempt to upload an HTML file to the file upload endpoint and see if it's accepted without validation.Check Version:
Check application documentation or interface for version information. No standard command available.Verify Fix Applied:
Test file upload functionality with various file types including HTML/PHP files. Successful fix should reject or sanitize dangerous file types.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads with .html/.htm/.php extensions
- Large number of file upload requests
- Web server error logs showing file write attempts to unexpected locations
Network Indicators:
- POST requests to file upload endpoints with HTML/PHP content
- Unusual outbound connections from web server
SIEM Query:
source="web_server" AND (url="*upload*" OR method="POST") AND (file_extension="html" OR file_extension="htm" OR file_extension="php")