CVE-2024-42219
📋 TL;DR
This vulnerability in 1Password 8 for macOS allows local attackers to exfiltrate vault items due to insufficient XPC inter-process communication validation. Attackers with local access can potentially access sensitive password vault data. Only macOS users running vulnerable 1Password 8 versions are affected.
💻 Affected Systems
- 1Password 8
📦 What is this software?
1password by 1password
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all vault items including passwords, secure notes, and sensitive data stored in 1Password, potentially leading to credential theft and account takeovers.
Likely Case
Local attackers or malware with user-level access can extract some vault items, compromising sensitive credentials and personal information.
If Mitigated
With proper access controls and updated software, risk is limited to authorized users only accessing their own vaults.
🎯 Exploit Status
Requires local access to the macOS system. XPC validation bypass allows unauthorized access to vault items.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.10.36
Vendor Advisory: https://support.1password.com/kb/202408a/
Restart Required: Yes
Instructions:
1. Open 1Password 8 on macOS. 2. Go to Settings > Updates. 3. Click 'Check for Updates'. 4. Install version 8.10.36 or later. 5. Restart 1Password.
🔧 Temporary Workarounds
Limit Local Access
allRestrict physical and remote local access to macOS systems running vulnerable 1Password versions.
🧯 If You Can't Patch
- Restrict local user access to affected macOS systems
- Implement strict endpoint security controls and monitor for suspicious local activity
🔍 How to Verify
Check if Vulnerable:
Check 1Password version in Settings > About. If version is earlier than 8.10.36, system is vulnerable.Check Version:
Open 1Password, go to Settings > About to view versionVerify Fix Applied:
Confirm version is 8.10.36 or later in Settings > About after update.📡 Detection & Monitoring
Log Indicators:
- Unusual XPC communication patterns
- Multiple failed authentication attempts to 1Password services
Network Indicators:
- Local process communication anomalies on macOS
SIEM Query:
Process monitoring for unauthorized access to 1Password XPC services on macOS endpoints