Vulnerability Details : CVE-2020-14076
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.
Vulnerability category: OverflowMemory CorruptionExecute code
Exploit prediction scoring system (EPSS) score for CVE-2020-14076
Probability of exploitation activity in the next 30 days: 8.46%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 94 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-14076
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-14076
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-14076
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https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_disconnect_overflow.pdf
IoTFirmware/st_dev_disconnect_overflow.pdf at master · kuc001/IoTFirmware · GitHubExploit;Third Party Advisory
-
https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_rconnect_overflow.pdf
IoTFirmware/st_dev_rconnect_overflow.pdf at master · kuc001/IoTFirmware · GitHubExploit;Third Party Advisory
-
https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-st_dev.pdf
IoTFirmware/TRENDnet-st_dev.pdf at master · kuc001/IoTFirmware · GitHubThird Party Advisory
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https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/st_dev_connect_overflow.pdf
IoTFirmware/st_dev_connect_overflow.pdf at master · kuc001/IoTFirmware · GitHubExploit;Third Party Advisory
Products affected by CVE-2020-14076
- cpe:2.3:o:trendnet:tew-827dru_firmware:*:*:*:*:*:*:*:*