CVE-2024-11681
📋 TL;DR
This vulnerability allows a malicious or compromised MacPorts mirror to execute arbitrary commands with root privileges on client machines during the 'port selfupdate' operation. It affects all MacPorts users who run selfupdate against untrusted mirrors. The attack requires the client to connect to a compromised mirror server.
💻 Affected Systems
- MacPorts
📦 What is this software?
Macports by Macports
⚠️ Risk & Real-World Impact
Worst Case
Full root compromise of the client system, allowing complete system takeover, data theft, and persistent backdoor installation.
Likely Case
Root-level command execution leading to malware installation, credential theft, or system manipulation by attackers controlling a mirror.
If Mitigated
Limited impact if using only trusted mirrors and network segmentation prevents mirror compromise.
🎯 Exploit Status
Exploitation requires controlling or compromising a MacPorts mirror server that clients connect to.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: MacPorts with the security fix applied
Vendor Advisory: https://github.com/google/security-research/security/advisories/GHSA-2j38-pjh8-wfxw
Restart Required: No
Instructions:
Update MacPorts base system: sudo port selfupdate
Ensure you're using the latest MacPorts version from official sources
🔧 Temporary Workarounds
Use only trusted mirrors
allConfigure MacPorts to use only verified, trusted mirrors and avoid unofficial mirrors
Edit /opt/local/etc/macports/sources.conf to list only trusted mirrors
Disable selfupdate
allTemporarily disable automatic updates until patched
Avoid running 'port selfupdate' until system is patched
🧯 If You Can't Patch
- Configure MacPorts to use only official, verified mirrors in sources.conf
- Run MacPorts operations in a sandboxed or containerized environment
🔍 How to Verify
Check if Vulnerable:
Check if MacPorts is installed and if you've run 'port selfupdate' against untrusted mirrorsCheck Version:
port versionVerify Fix Applied:
Verify MacPorts version is updated and check that sources.conf contains only trusted mirrors📡 Detection & Monitoring
Log Indicators:
- Unexpected root-level process execution after port selfupdate
- Suspicious network connections to non-standard mirrors
Network Indicators:
- Connections to non-standard MacPorts mirror domains or IPs
SIEM Query:
Process creation where parent process contains 'port' and command contains suspicious patterns