CVE-2024-23710

7.8 HIGH

📋 TL;DR

This Android vulnerability allows a malicious app to execute arbitrary code with privileged app permissions due to a logic error in package installation validation. It enables local privilege escalation without requiring user interaction. Affects Android devices running vulnerable versions.

💻 Affected Systems

Products:
  • Android
Versions: Android versions prior to April 2024 security patch
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: Affects devices with shared user ID functionality enabled. Requires malicious app installation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise where attacker gains SYSTEM-level privileges, enabling data theft, persistence, and full control over device functions.

🟠

Likely Case

Malicious app escalates to privileged permissions, accessing sensitive data, modifying system settings, or installing additional malware.

🟢

If Mitigated

Limited impact if device is patched or has strict app installation restrictions, though unpatched devices remain vulnerable.

🌐 Internet-Facing: LOW
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires local app installation but no user interaction. Exploit would need to bypass app store protections.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: April 2024 Android Security Patch

Vendor Advisory: https://source.android.com/security/bulletin/2024-04-01

Restart Required: Yes

Instructions:

1. Check for Android system updates in Settings > System > System update. 2. Install April 2024 security patch. 3. Reboot device after installation.

🔧 Temporary Workarounds

Restrict app installations

android

Only allow app installations from trusted sources like Google Play Store

Settings > Security > Install unknown apps > Disable for all apps

Disable developer options

android

Prevent USB debugging and other developer features that could facilitate exploitation

Settings > System > Developer options > Turn off

🧯 If You Can't Patch

  • Implement mobile device management (MDM) with strict app whitelisting
  • Monitor for suspicious app installations and privilege escalation attempts

🔍 How to Verify

Check if Vulnerable:

Check Android security patch level in Settings > About phone > Android version > Security patch level

Check Version:

adb shell getprop ro.build.version.security_patch

Verify Fix Applied:

Verify security patch level shows 'April 5, 2024' or later

📡 Detection & Monitoring

Log Indicators:

  • Package installation attempts with shared user IDs
  • Unexpected privilege escalation in app logs

Network Indicators:

  • Unusual network traffic from apps with elevated permissions

SIEM Query:

source="android_logs" AND (event="package_install" OR event="permission_grant") AND user_id="shared"

🔗 References

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