CVE-2019-8575
📋 TL;DR
CVE-2019-8575 is a data deletion vulnerability in Apple AirPort base stations where performing a factory reset may not properly erase all user information. This affects users of Apple AirPort base stations who attempt to reset their devices before disposal or transfer. The vulnerability could allow subsequent users or attackers to access residual sensitive data.
💻 Affected Systems
- Apple AirPort Base Station
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Sensitive user data (network credentials, personal information) remains accessible to unauthorized individuals who obtain the device after reset, potentially leading to identity theft or network compromise.
Likely Case
Previous owner's Wi-Fi credentials and basic configuration data remain on the device, allowing new owners to access the previous network or gather personal information.
If Mitigated
If proper firmware updates are applied before resetting, all user data is properly erased during factory reset procedures.
🎯 Exploit Status
Exploitation requires physical access to the device after a factory reset has been performed. No authentication bypass or remote exploitation is involved.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: AirPort Base Station Firmware Update 7.8.1 and 7.9.1
Vendor Advisory: https://support.apple.com/en-us/HT210090
Restart Required: Yes
Instructions:
1. Open AirPort Utility on macOS or iOS. 2. Select your AirPort base station. 3. Click 'Edit' then 'Update' to check for firmware updates. 4. Apply firmware update 7.8.1 or 7.9.1. 5. The base station will restart automatically after update.
🔧 Temporary Workarounds
Manual Data Wipe Before Reset
allManually delete all network configurations and user data through AirPort Utility before performing factory reset
🧯 If You Can't Patch
- Physically destroy storage components before device disposal
- Use third-party data wiping tools specifically designed for network hardware
🔍 How to Verify
Check if Vulnerable:
Check firmware version in AirPort Utility. If version is earlier than 7.8.1 or 7.9.1, the device is vulnerable.Check Version:
Open AirPort Utility, select base station, check firmware version in device informationVerify Fix Applied:
Verify firmware version shows 7.8.1 or 7.9.1 in AirPort Utility after update.📡 Detection & Monitoring
Log Indicators:
- Factory reset events in device logs without corresponding firmware update logs
Network Indicators:
- Unauthorized devices connecting with previous owner's credentials
SIEM Query:
No standard SIEM query available as this is primarily a physical device issue