CVE-2024-22699
📋 TL;DR
FlyCms v1.0 contains a Cross-Site Request Forgery (CSRF) vulnerability in the group update functionality. This allows attackers to trick authenticated administrators into performing unauthorized group modifications. Any organization using FlyCms v1.0 with administrative interfaces exposed is affected.
💻 Affected Systems
- FlyCms
📦 What is this software?
Flycms by Flycms Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify user groups and permissions, potentially gaining administrative access or escalating privileges to compromise the entire CMS installation.
Likely Case
Unauthorized modification of user groups leading to privilege escalation or unauthorized access to restricted content.
If Mitigated
Limited impact if proper CSRF protections and access controls are implemented, though the vulnerability still exists.
🎯 Exploit Status
CSRF attacks are well-understood and easy to implement. The vulnerability requires the victim to be logged in as an administrator and visit a malicious page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider implementing CSRF tokens in the /system/admin/update_group_save endpoint or upgrading to a patched version if released.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd CSRF tokens to the group update form and validate them server-side
Modify /system/admin/update_group_save endpoint to require CSRF token validation
Restrict Admin Access
allLimit administrative interface access to trusted networks only
Configure firewall rules to restrict access to /system/admin/* paths
🧯 If You Can't Patch
- Implement network segmentation to isolate the CMS admin interface from untrusted networks
- Require re-authentication for sensitive administrative actions like group modifications
🔍 How to Verify
Check if Vulnerable:
Check if /system/admin/update_group_save endpoint accepts POST requests without CSRF token validationCheck Version:
Check FlyCms version in admin panel or configuration filesVerify Fix Applied:
Verify that CSRF tokens are required and validated for all POST requests to the vulnerable endpoint📡 Detection & Monitoring
Log Indicators:
- Multiple unauthorized group modification attempts
- POST requests to /system/admin/update_group_save from unexpected sources
Network Indicators:
- HTTP POST requests to vulnerable endpoint without referrer validation
- Suspicious redirects to admin interfaces
SIEM Query:
source_ip NOT IN trusted_networks AND uri_path="/system/admin/update_group_save" AND http_method="POST"