CVE-2025-34513

9.8 CRITICAL

📋 TL;DR

Ilevia EVE X1 Server firmware contains an unauthenticated OS command injection vulnerability in mbus_build_from_csv.php that allows remote attackers to execute arbitrary code. This affects all firmware versions up to 4.7.18.0.eden. The vendor has declined to provide a patch, leaving affected systems permanently vulnerable.

💻 Affected Systems

Products:
  • Ilevia EVE X1 Server
Versions: All firmware versions ≤ 4.7.18.0.eden
Operating Systems: Embedded Linux (firmware-based)
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default configuration. Port 8080 is typically enabled by default.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining root/system privileges, installing persistent backdoors, stealing sensitive data, and pivoting to internal networks.

🟠

Likely Case

Remote code execution leading to data theft, ransomware deployment, or botnet recruitment of vulnerable devices.

🟢

If Mitigated

Limited impact if proper network segmentation and access controls prevent exploitation attempts.

🌐 Internet-Facing: HIGH - Unauthenticated remote exploitation with CVSS 9.8 score indicates critical risk for internet-exposed systems.
🏢 Internal Only: MEDIUM - Still vulnerable to internal attackers or compromised internal systems, but attack surface is reduced.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Public exploit details available in vulnerability disclosures. Simple HTTP request to vulnerable endpoint with command injection payload.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: None

Vendor Advisory: https://www.ilevia.com/

Restart Required: No

Instructions:

No official patch available. Vendor recommends not exposing port 8080 to internet.

🔧 Temporary Workarounds

Block Port 8080 at Network Perimeter

linux

Prevent external access to vulnerable service by blocking TCP port 8080 at firewall.

iptables -A INPUT -p tcp --dport 8080 -j DROP
firewall-cmd --permanent --add-rich-rule='rule family="ipv4" port port="8080" protocol="tcp" reject'

Restrict Access with Network ACLs

linux

Limit access to port 8080 to only trusted management networks.

iptables -A INPUT -p tcp --dport 8080 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j DROP

🧯 If You Can't Patch

  • Isolate affected systems in dedicated VLAN with strict network segmentation
  • Implement web application firewall (WAF) rules to block command injection patterns

🔍 How to Verify

Check if Vulnerable:

Check if firmware version is ≤ 4.7.18.0.eden and port 8080 is accessible. Test with harmless command injection payload like ';id;' to mbus_build_from_csv.php endpoint.

Check Version:

Check device web interface or SSH to device and run firmware version check command specific to Ilevia EVE X1 Server.

Verify Fix Applied:

Verify port 8080 is not accessible from untrusted networks. Confirm firewall rules block external access.

📡 Detection & Monitoring

Log Indicators:

  • HTTP requests to /mbus_build_from_csv.php with shell metacharacters (;, |, &, $)
  • Unusual process execution from web server context
  • Failed authentication attempts followed by command execution

Network Indicators:

  • HTTP POST requests to port 8080 containing command injection patterns
  • Outbound connections from server to suspicious IPs following exploitation

SIEM Query:

source="web_logs" AND (url="*mbus_build_from_csv.php*" AND (request="*;*" OR request="*|*" OR request="*`*" OR request="*$(*"))

🔗 References

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