CVE-2024-4589
📋 TL;DR
This CVE describes a Cross-Site Request Forgery (CSRF) vulnerability in DedeCMS 5.7 that allows attackers to trick authenticated users into performing unintended actions via the /src/dede/mytag_edit.php file. The vulnerability affects all DedeCMS 5.7 installations with the vulnerable file accessible. Attackers can exploit this remotely to modify content or settings when users are logged in.
💻 Affected Systems
- DedeCMS
📦 What is this software?
Dedecms by Dedecms
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify website content, change administrative settings, or perform actions as authenticated users, potentially leading to data manipulation or unauthorized configuration changes.
Likely Case
Attackers create malicious pages that trick logged-in administrators into unknowingly modifying tags or content, leading to defacement or content manipulation.
If Mitigated
With proper CSRF protections and user awareness, impact is limited to failed exploitation attempts with no actual compromise.
🎯 Exploit Status
Exploit details are publicly available on GitHub. Attack requires social engineering to trick authenticated users into visiting malicious pages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Vendor was contacted but did not respond. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF protection tokens to forms in mytag_edit.php and verify them on submission
Modify /src/dede/mytag_edit.php to include and validate CSRF tokens
Restrict Access
allRestrict access to /src/dede/mytag_edit.php to trusted IP addresses only
Add IP-based restrictions in .htaccess or web server configuration
🧯 If You Can't Patch
- Implement strict SameSite cookie policies and require re-authentication for sensitive actions
- Deploy web application firewall (WAF) rules to detect and block CSRF attempts
🔍 How to Verify
Check if Vulnerable:
Check if /src/dede/mytag_edit.php exists and lacks CSRF token validation in form submissionsCheck Version:
Check DedeCMS version in admin panel or configuration filesVerify Fix Applied:
Test that forms in mytag_edit.php now include and validate CSRF tokens📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to /src/dede/mytag_edit.php without referrer headers or from suspicious sources
Network Indicators:
- Requests to mytag_edit.php with unexpected parameters or from known malicious domains
SIEM Query:
source="web_logs" AND uri="/src/dede/mytag_edit.php" AND method="POST" AND (referrer="" OR referrer NOT CONTAINS domain)