CVE-2025-57489
📋 TL;DR
This vulnerability in SuperDuper! v3.10 allows attackers to escalate privileges to root through improper access control in the SDAgent component. The issue stems from a setuid binary that doesn't properly validate user permissions. Users running SuperDuper! v3.10 on macOS systems are affected.
💻 Affected Systems
- Shirt Pocket SuperDuper!
📦 What is this software?
Superduper\! by Shirt Pocket
⚠️ Risk & Real-World Impact
Worst Case
Full root compromise of the system, allowing complete control, data theft, persistence mechanisms, and lateral movement.
Likely Case
Local privilege escalation from a standard user account to root, enabling installation of malware, data access, and system modification.
If Mitigated
Limited impact if proper privilege separation and least privilege principles are already implemented.
🎯 Exploit Status
Requires local user access but likely straightforward to exploit given the nature of setuid privilege escalation vulnerabilities.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v3.11
Vendor Advisory: https://www.shirtpocket.com/blog/index.php/shadedgrey/comments/superduper_security_update_v311/
Restart Required: No
Instructions:
1. Download SuperDuper! v3.11 from the official website. 2. Install the update following the standard installation process. 3. Verify the version is updated to v3.11.
🔧 Temporary Workarounds
Remove setuid bit from SDAgent
linuxRemove the setuid privilege from the vulnerable binary to prevent privilege escalation
sudo chmod u-s /path/to/SDAgent
Restrict SDAgent execution
linuxLimit execution of the SDAgent binary to trusted users only
sudo chmod 750 /path/to/SDAgent
🧯 If You Can't Patch
- Remove or disable the SDAgent component if not required for functionality
- Implement strict access controls and monitor for unauthorized privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check if SuperDuper! version is 3.10 and if SDAgent binary has setuid permissions (look for 's' in permission string when running 'ls -l /path/to/SDAgent')Check Version:
Check SuperDuper! application version in About dialog or check installed package versionVerify Fix Applied:
Verify SuperDuper! version is 3.11 or later and check that SDAgent no longer has improper setuid permissions📡 Detection & Monitoring
Log Indicators:
- Unexpected privilege escalation attempts
- SDAgent process execution with elevated privileges
- Failed authentication or authorization events
Network Indicators:
- None - this is a local privilege escalation vulnerability
SIEM Query:
process.name:"SDAgent" AND user.name:!"root" AND process.privileges:"setuid"