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How the CVE Works:
CVE-2025-32882 affects goTenna v1 devices running app version 5.5.3 and firmware 0.25.5. The vulnerability stems from the app’s custom encryption implementation, which lacks integrity checking. Attackers with access to transmitted messages can manipulate (malleability attack) the encrypted content without detection, as there is no mechanism (e.g., HMAC) to verify message authenticity. This allows unauthorized modification of data in transit, compromising confidentiality and reliability.
DailyCVE Form:
Platform: goTenna v1
Version: App 5.5.3, Firmware 0.25.5
Vulnerability: Encryption malleability
Severity: Critical
Date: 06/20/2025
Prediction: Patch expected by 08/2025
What Undercode Say:
Check app version (Android): adb shell dumpsys package com.gotenna | grep versionName Firmware version (device logs): logcat | grep "Firmware Version" Packet capture (mitmproxy): mitmproxy -T --host -p 8080
How Exploit:
1. Intercept goTenna RF transmissions.
2. Modify encrypted payloads (bit-flipping).
3. Re-transmit tampered messages.
Protection from this CVE:
- Update to patched firmware.
- Implement AES-GCM.
- Enable message authentication.
Impact:
- Data integrity loss.
- Spoofing attacks.
- Privacy breaches.
Sources:
Reported By:
Extra Source Hub:
Undercode
