CVE-2024-22592
📋 TL;DR
FlyCms v1.0 contains a CSRF vulnerability in the user group update endpoint that allows attackers to trick authenticated administrators into performing unauthorized group modifications. This affects all FlyCms v1.0 installations with administrative interfaces accessible to users. Attackers can exploit this by luring administrators to malicious web pages.
💻 Affected Systems
- FlyCms
📦 What is this software?
Flycms by Flycms Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify user group permissions to grant themselves administrative privileges, delete user groups, or disrupt system access controls, leading to complete system compromise.
Likely Case
Attackers modify user group settings to gain elevated privileges or disrupt normal user access, potentially leading to data exposure or unauthorized content modifications.
If Mitigated
With proper CSRF protections and administrative awareness, exploitation attempts would fail, maintaining normal system operations.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into visiting a malicious page. The vulnerability is well-documented in public repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Consider implementing CSRF tokens manually or upgrading to a newer version if available.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd CSRF tokens to the /system/user/group_update endpoint and validate them on the server side.
Restrict Administrative Access
allLimit administrative interface access to specific IP addresses or networks using firewall rules.
🧯 If You Can't Patch
- Implement network segmentation to isolate administrative interfaces from general user access
- Require multi-factor authentication for administrative actions and educate administrators about CSRF risks
🔍 How to Verify
Check if Vulnerable:
Check if FlyCms version is 1.0 and if the /system/user/group_update endpoint lacks CSRF token validation.Check Version:
Check FlyCms configuration files or admin panel for version information.Verify Fix Applied:
Verify that CSRF tokens are required and validated for the /system/user/group_update endpoint.📡 Detection & Monitoring
Log Indicators:
- Multiple unauthorized group_update requests from same administrator session
- Group permission changes without corresponding admin login events
Network Indicators:
- HTTP POST requests to /system/user/group_update without Referer headers or CSRF tokens
- Administrative actions originating from unexpected sources
SIEM Query:
source="web_logs" AND uri="/system/user/group_update" AND NOT csrf_token=*