CVE-2019-7287
📋 TL;DR
CVE-2019-7287 is a memory corruption vulnerability in iOS that allows malicious applications to execute arbitrary code with kernel privileges. This affects iOS devices running versions before 12.1.4, potentially giving attackers full system control.
💻 Affected Systems
- iPhone
- iPad
- iPod touch
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise with kernel-level persistence, data theft, and ability to bypass all security controls.
Likely Case
Malicious app gains full system access, installs backdoors, steals sensitive data, and maintains persistence.
If Mitigated
Limited impact if device is patched, uses app sandboxing effectively, and has minimal sensitive data.
🎯 Exploit Status
Exploitation requires user to install malicious application. CISA lists this as known exploited vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: iOS 12.1.4
Vendor Advisory: https://support.apple.com/HT209520
Restart Required: Yes
Instructions:
1. Go to Settings > General > Software Update. 2. Download and install iOS 12.1.4 or later. 3. Restart device after installation completes.
🔧 Temporary Workarounds
Restrict App Installation
iosOnly allow installation from App Store and trusted developers
Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Installing Apps > Don't Allow
🧯 If You Can't Patch
- Isolate vulnerable devices from sensitive networks and data
- Implement strict application whitelisting and monitoring
🔍 How to Verify
Check if Vulnerable:
Check iOS version in Settings > General > About > Version. If version is earlier than 12.1.4, device is vulnerable.Check Version:
Settings > General > About > VersionVerify Fix Applied:
Verify iOS version is 12.1.4 or later in Settings > General > About > Version.📡 Detection & Monitoring
Log Indicators:
- Unusual kernel process activity
- Unexpected privilege escalation attempts
- Suspicious app behavior logs
Network Indicators:
- Unexpected outbound connections from iOS devices
- Communication with known malicious domains
SIEM Query:
source="ios_device" AND (event_type="privilege_escalation" OR process="kernel")