CVE-2022-28036

9.8 CRITICAL

📋 TL;DR

CVE-2022-28036 is a critical SQL injection vulnerability in AtomCMS 2.0 that allows attackers to execute arbitrary SQL commands via the Atom.CMS_admin_ajax_navigation.php endpoint. This affects all AtomCMS 2.0 installations, potentially compromising the entire database and application.

💻 Affected Systems

Products:
  • AtomCMS
Versions: 2.0
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default installation of AtomCMS 2.0. No special configuration is required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, data manipulation, authentication bypass, and potential remote code execution via database functions.

🟠

Likely Case

Database information disclosure, privilege escalation, and unauthorized data access or modification.

🟢

If Mitigated

Limited impact with proper input validation and parameterized queries in place.

🌐 Internet-Facing: HIGH - The vulnerable endpoint is typically accessible to authenticated users and potentially unauthenticated attackers depending on configuration.
🏢 Internal Only: MEDIUM - Internal attackers could exploit this to escalate privileges or access sensitive data.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authentication to access the admin panel. The SQL injection is straightforward with publicly available proof-of-concept code.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.0.1 or later

Vendor Advisory: https://github.com/thedigicraft/Atom.CMS/issues/262

Restart Required: No

Instructions:

1. Download the latest version from the official AtomCMS repository. 2. Replace the vulnerable Atom.CMS_admin_ajax_navigation.php file. 3. Ensure all user inputs are properly sanitized in custom code.

🔧 Temporary Workarounds

Input Validation Workaround

all

Add input validation and parameterized queries to the vulnerable endpoint

Edit Atom.CMS_admin_ajax_navigation.php to replace raw SQL queries with prepared statements

Access Restriction

all

Restrict access to the vulnerable endpoint

Add IP whitelisting or additional authentication to /admin/Atom.CMS_admin_ajax_navigation.php

🧯 If You Can't Patch

  • Implement a web application firewall (WAF) with SQL injection rules
  • Disable the vulnerable endpoint if not required for functionality

🔍 How to Verify

Check if Vulnerable:

Check if Atom.CMS_admin_ajax_navigation.php exists in the admin directory and contains unsanitized SQL queries with user input.

Check Version:

Check the version number in the AtomCMS configuration files or admin panel.

Verify Fix Applied:

Verify that the file has been updated with parameterized queries and proper input validation.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in application logs
  • Multiple failed login attempts followed by admin panel access
  • Suspicious POST requests to Atom.CMS_admin_ajax_navigation.php

Network Indicators:

  • SQL syntax in HTTP POST parameters
  • Unusual database connection patterns from web server

SIEM Query:

source="web_logs" AND uri="*Atom.CMS_admin_ajax_navigation.php*" AND (param="*SELECT*" OR param="*UNION*" OR param="*OR 1=1*")

🔗 References

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