CVE-2022-28034

9.8 CRITICAL

📋 TL;DR

AtomCMS 2.0 contains a SQL injection vulnerability in the admin_ajax_list-sort.php file that allows attackers to execute arbitrary SQL commands. This affects all AtomCMS 2.0 installations with admin panel access. Attackers can potentially access, modify, or delete database content.

💻 Affected Systems

Products:
  • AtomCMS
Versions: 2.0
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires admin panel access to exploit the vulnerable endpoint.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, data destruction, or full system takeover via subsequent attacks.

🟠

Likely Case

Unauthorized database access allowing extraction of sensitive information like user credentials, content, or configuration data.

🟢

If Mitigated

Limited impact if proper input validation and parameterized queries are implemented.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated admin access but uses simple SQL injection techniques.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: https://github.com/thedigicraft/Atom.CMS/issues/261

Restart Required: No

Instructions:

1. Review the GitHub issue for community patches. 2. Manually implement parameterized queries in admin_ajax_list-sort.php. 3. Validate and sanitize all user inputs before database queries.

🔧 Temporary Workarounds

Input Validation Implementation

all

Add strict input validation to filter and sanitize parameters before SQL execution.

# Edit admin_ajax_list-sort.php to validate sort parameters
# Example: if(!preg_match('/^[a-zA-Z_]+$/', $_POST['sort'])) { die('Invalid input'); }

WAF Rule Implementation

all

Deploy web application firewall rules to block SQL injection patterns targeting the vulnerable endpoint.

# ModSecurity rule example: SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny"

🧯 If You Can't Patch

  • Restrict admin panel access to trusted IP addresses only
  • Monitor database logs for unusual query patterns and failed login attempts

🔍 How to Verify

Check if Vulnerable:

Test the /admin/atom.CMS_admin_ajax_list-sort.php endpoint with SQL injection payloads in sort parameters.

Check Version:

Check AtomCMS version in configuration files or admin panel footer.

Verify Fix Applied:

Verify that parameterized queries are implemented and test with SQL injection payloads that should be rejected.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL queries in database logs
  • Multiple failed login attempts followed by admin panel access
  • Requests to admin_ajax_list-sort.php with suspicious parameters

Network Indicators:

  • HTTP POST requests to admin endpoints containing SQL keywords like UNION, SELECT, INSERT

SIEM Query:

source="web_logs" AND uri="*admin_ajax_list-sort.php*" AND (param="*UNION*" OR param="*SELECT*" OR param="*INSERT*")

🔗 References

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