CVE-2025-25038
📋 TL;DR
A critical OS command injection vulnerability in MiniDVBLinux allows remote unauthenticated attackers to execute arbitrary commands as root. This affects MiniDVBLinux version 5.4 and earlier, potentially compromising entire devices. Exploitation evidence was observed in the wild by Shadowserver Foundation.
💻 Affected Systems
- MiniDVBLinux
📦 What is this software?
Minidvblinux by Minidvblinux
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover with root access, data theft, lateral movement, and persistent backdoor installation.
Likely Case
Remote code execution leading to device compromise, credential harvesting, and participation in botnets.
If Mitigated
Limited impact if web interface is disabled or network access is restricted.
🎯 Exploit Status
Exploit code is publicly available and exploitation has been observed in the wild.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Consider upgrading to version 5.5+ if available, or implement workarounds.
🔧 Temporary Workarounds
Disable Web Management Interface
linuxDisable the vulnerable web interface to prevent exploitation.
systemctl stop minidvb-web
systemctl disable minidvb-web
Network Access Control
linuxRestrict network access to the web interface using firewall rules.
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Isolate affected devices in a separate network segment
- Implement strict network filtering to block access to web interface ports
🔍 How to Verify
Check if Vulnerable:
Check if MiniDVBLinux version is 5.4 or earlier and web interface is accessible.Check Version:
cat /etc/minidvb-version || minidvb --versionVerify Fix Applied:
Verify web interface is disabled or inaccessible, or version is 5.5+.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Web interface access with suspicious parameters
Network Indicators:
- HTTP requests with shell metacharacters to web interface
SIEM Query:
source="web_logs" AND (uri="*;*" OR uri="*|*" OR uri="*`*" OR uri="*$(*" OR uri="*%3B*" OR uri="*%7C*")🔗 References
- https://cxsecurity.com/issue/WLB-2022100039
- https://packetstormsecurity.com/files/168744/
- https://vulncheck.com/advisories/minidvblinux-command-injection
- https://www.exploit-db.com/exploits/51096
- https://www.fortiguard.com/encyclopedia/ips/52454
- https://www.minidvblinux.de
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5717.php
