CVE-2024-25731
📋 TL;DR
The Elink Smart eSmartCam Android app version 2.1.5 contains hardcoded AES encryption keys in its binary, allowing attackers who can intercept network traffic (e.g., over Wi-Fi) to decrypt sensitive data. This affects all users of this specific Android application version who transmit data over potentially observable networks.
💻 Affected Systems
- Elink Smart eSmartCam Android application
📦 What is this software?
Esmartcam by Elinksmart
⚠️ Risk & Real-World Impact
Worst Case
Attackers decrypt all camera video/audio streams, access device credentials, and potentially compromise the entire smart camera ecosystem, leading to privacy violations and unauthorized surveillance.
Likely Case
Attackers on the same network decrypt transmitted video/audio data, violating user privacy by accessing camera feeds without authorization.
If Mitigated
With proper network segmentation and encryption controls, impact is limited to isolated network segments, but the fundamental vulnerability remains in the app.
🎯 Exploit Status
Exploitation requires network access to intercept traffic, but the hardcoded keys are publicly documented in GitHub repositories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
1. Check Google Play Store for app updates from the vendor. 2. If no update is available, uninstall the vulnerable version. 3. Contact the vendor for patch information.
🔧 Temporary Workarounds
Network Segmentation
allIsolate the camera and mobile device on a separate VLAN or network segment to limit exposure.
Disable Wi-Fi Camera Access
androidUse cellular data instead of Wi-Fi for camera connectivity when possible to reduce interception risk.
🧯 If You Can't Patch
- Uninstall the vulnerable application immediately.
- Replace with a different camera application from a trusted vendor with proper encryption practices.
🔍 How to Verify
Check if Vulnerable:
Check the app version in Android Settings > Apps > eSmartCam. If version is 2.1.5, it is vulnerable.Check Version:
No command needed; check via Android app settings.Verify Fix Applied:
Verify the app has been updated to a version later than 2.1.5, or confirm it has been uninstalled.📡 Detection & Monitoring
Log Indicators:
- Unusual network decryption attempts or errors in app logs, though limited due to the nature of the vulnerability.
Network Indicators:
- Unexpected decryption of camera traffic using known hardcoded keys, detectable via network monitoring tools.
SIEM Query:
Not typically applicable for this client-side app vulnerability; focus on endpoint and network monitoring for suspicious traffic patterns.