Vulnerabilities > CVE-2020-14076 - Out-of-bounds Write vulnerability in Trendnet Tew-827Dru Firmware
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action st_dev_connect, st_dev_disconnect, or st_dev_rconnect with a sufficiently long wan_type key.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 6 | |
| Hardware | 1 |
Common Weakness Enumeration (CWE)
References
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_disconnect_overflow.pdf
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_rconnect_overflow.pdf
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_connect_overflow.pdf
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-st_dev.pdf