CVE-2024-46089
📋 TL;DR
CVE-2024-46089 is a remote code execution vulnerability in 74cms background interface apiadmin that allows attackers to execute arbitrary code on affected systems. This affects 74cms versions up to and including 3.33, potentially compromising the entire web application server.
💻 Affected Systems
- 74cms
📦 What is this software?
74cms by 74cms
⚠️ Risk & Real-World Impact
Worst Case
Complete server takeover with attacker gaining full control over the web server, data exfiltration, installation of persistent backdoors, and lateral movement to other systems.
Likely Case
Webshell deployment leading to data theft, defacement, or use as part of a botnet for further attacks.
If Mitigated
Limited impact if proper network segmentation and least privilege access controls are implemented, potentially containing the breach to the web server only.
🎯 Exploit Status
Exploit details and proof-of-concept code are publicly available in the provided references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: > 3.33
Vendor Advisory: Not specified in provided references
Restart Required: No
Instructions:
1. Upgrade 74cms to version newer than 3.33. 2. Apply any available security patches from the vendor. 3. Verify the fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Restrict access to apiadmin interface
linuxBlock or restrict access to the vulnerable background interface using firewall rules or web server configuration.
iptables -A INPUT -p tcp --dport 80 -m string --string "apiadmin" --algo bm -j DROP
iptables -A INPUT -p tcp --dport 443 -m string --string "apiadmin" --algo bm -j DROP
Implement web application firewall rules
allAdd WAF rules to block malicious requests targeting the apiadmin interface.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the vulnerable system
- Apply principle of least privilege and disable unnecessary background interfaces
🔍 How to Verify
Check if Vulnerable:
Check if 74cms version is <= 3.33 and test the apiadmin interface for RCE vulnerability using safe testing methods.Check Version:
Check 74cms configuration files or admin panel for version informationVerify Fix Applied:
Verify version is > 3.33 and test that the apiadmin interface no longer accepts malicious payloads that could lead to RCE.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to apiadmin endpoints
- Suspicious file uploads or system command execution in logs
- Unexpected process creation from web server user
Network Indicators:
- Unusual outbound connections from web server
- Traffic patterns indicating data exfiltration
- Requests containing suspicious payloads to apiadmin
SIEM Query:
source="web_server" AND (uri="*apiadmin*" AND (method="POST" OR method="PUT") AND (payload="*system(*" OR payload="*exec(*" OR payload="*shell_exec(*"))