CVE-2024-48541

8.4 HIGH

📋 TL;DR

This vulnerability allows attackers to bypass access controls in Ruochan Smart firmware update processes, enabling unauthorized access to sensitive information by analyzing the APK file. It affects users of Ruochan Smart v4.4.7 who have the mobile application installed.

💻 Affected Systems

Products:
  • Ruochan Smart
Versions: v4.4.7
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in the mobile application APK file itself, not requiring specific device configurations.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could extract firmware, credentials, or encryption keys leading to complete device compromise, data theft, or malicious firmware deployment.

🟠

Likely Case

Information disclosure of sensitive data within the APK, potentially exposing API keys, hardcoded credentials, or device communication protocols.

🟢

If Mitigated

With proper access controls, attackers would be unable to extract meaningful information from the APK file.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires only APK file analysis tools like jadx or apktool, no authentication needed.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: http://www.ruochanit.com/

Restart Required: No

Instructions:

1. Contact Ruochan for updated APK version
2. Uninstall current v4.4.7 application
3. Install patched version if available

🔧 Temporary Workarounds

APK Hardening

all

Apply code obfuscation and resource encryption to APK file

Use tools like ProGuard, DexGuard, or R8 for code obfuscation

Network Segmentation

all

Restrict device communication to trusted networks only

🧯 If You Can't Patch

  • Discontinue use of Ruochan Smart v4.4.7 application
  • Monitor for suspicious APK analysis activity on network

🔍 How to Verify

Check if Vulnerable:

Check APK version in Android settings > Apps > Ruochan Smart > App info

Check Version:

adb shell dumpsys package com.ruochan.dabai | grep versionName

Verify Fix Applied:

Verify new APK version number and test with APK analysis tools

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed firmware update attempts
  • Unusual APK file access patterns

Network Indicators:

  • Unexpected firmware download requests
  • Suspicious API calls to Ruochan servers

SIEM Query:

source="android_logs" app="com.ruochan.dabai" (event="firmware_download" OR event="apk_access")

🔗 References

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