CVE-2022-23357
📋 TL;DR
CVE-2022-23357 is a directory traversal vulnerability in mozilo2.0 CMS that allows attackers to access arbitrary files on the server via the 'curent_dir' parameter. This affects all mozilo2.0 installations using vulnerable versions. Attackers can potentially read sensitive files including configuration files and credentials.
💻 Affected Systems
- mozilo2.0 Content Management System
📦 What is this software?
Mozilocms by Mozilo
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise through reading sensitive configuration files, credentials, or executing arbitrary code by accessing critical system files.
Likely Case
Information disclosure of sensitive files including database credentials, configuration files, and user data.
If Mitigated
Limited impact with proper file permissions and web server restrictions preventing access to sensitive directories.
🎯 Exploit Status
Simple HTTP requests with directory traversal sequences in the curent_dir parameter can exploit this vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check mozilo2.0 repository for latest patched version
Vendor Advisory: https://github.com/truonghuuphuc/CVE/blob/main/CVE-2022-23357.pdf
Restart Required: No
Instructions:
1. Update to latest mozilo2.0 version. 2. Apply input validation to curent_dir parameter. 3. Implement proper path sanitization.
🔧 Temporary Workarounds
Input Validation Filter
allAdd input validation to reject directory traversal sequences in curent_dir parameter
Implement server-side validation to block '../' sequences in input
Web Server Restrictions
allConfigure web server to restrict file access to web root directory
Configure appropriate Directory restrictions in Apache/Nginx
🧯 If You Can't Patch
- Implement WAF rules to block directory traversal patterns in requests
- Restrict file permissions and implement least privilege access controls
🔍 How to Verify
Check if Vulnerable:
Test by sending HTTP request with '../' sequences in curent_dir parameter to see if arbitrary file access is possibleCheck Version:
Check mozilo2.0 version in admin panel or configuration filesVerify Fix Applied:
Attempt directory traversal attacks after patch to confirm they are blocked📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '../' or directory traversal patterns in curent_dir parameter
- Unusual file access patterns from web application
Network Indicators:
- HTTP requests with encoded directory traversal sequences (%2e%2e%2f)
SIEM Query:
web.url:*curent_dir* AND (web.url:*..* OR web.url:*%2e%2e*)