CVE-2025-63434

8.8 HIGH

📋 TL;DR

This vulnerability allows remote code execution on Android devices running Xtooltech Xtool AnyScan app versions 4.40.40 and earlier. An attacker who can intercept or manipulate update traffic can serve malicious packages that the app will execute without verification. This affects all users of the vulnerable app versions.

💻 Affected Systems

Products:
  • Xtooltech Xtool AnyScan Android Application
Versions: 4.40.40 and prior
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with default settings are vulnerable. The app requires network access for updates, which is typical functionality.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing attacker to install malware, steal sensitive data, control vehicle systems (if connected), and establish persistent access.

🟠

Likely Case

Attacker gains control of the app's functionality, potentially accessing device sensors, location data, and any connected vehicle diagnostic information.

🟢

If Mitigated

Limited impact if app is isolated via Android permissions and not connected to critical systems.

🌐 Internet-Facing: HIGH - The update mechanism connects to external servers, making it vulnerable to man-in-the-middle attacks or compromised update servers.
🏢 Internal Only: MEDIUM - Risk exists if attacker has network access to intercept update traffic, but requires specific positioning.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability is well-documented with public references. Exploitation requires network access to intercept or serve malicious updates.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

1. Check Google Play Store for app updates
2. If update available, install immediately
3. If no update available, uninstall the app until vendor provides fix

🔧 Temporary Workarounds

Disable app network access

android

Prevent the app from accessing the internet to block malicious update downloads

Android Settings > Apps > Xtool AnyScan > Mobile data & Wi-Fi > Disable background data and network access

Use app in offline mode

android

Only use the app when device is in airplane mode or disconnected from networks

🧯 If You Can't Patch

  • Uninstall the Xtool AnyScan app immediately
  • Use alternative vehicle diagnostic apps from trusted vendors with verified update mechanisms

🔍 How to Verify

Check if Vulnerable:

Check app version in Android Settings > Apps > Xtool AnyScan. If version is 4.40.40 or lower, you are vulnerable.

Check Version:

adb shell dumpsys package com.xtooltech.xtool | grep versionName

Verify Fix Applied:

Verify app version is higher than 4.40.40. Check that update downloads now use HTTPS with certificate validation.

📡 Detection & Monitoring

Log Indicators:

  • Unusual network connections from Xtool AnyScan app to non-standard domains
  • App downloading unusually large update packages
  • App attempting to execute files from unexpected locations

Network Indicators:

  • HTTP (not HTTPS) connections to update servers
  • Downloads from IP addresses instead of verified domains
  • Unencrypted update package transfers

SIEM Query:

source="android_logs" app="Xtool AnyScan" (event="network_request" AND (protocol="http" OR destination_ip!="verified_domain"))

🔗 References

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