Tenda AC8 Router Upload Function Crashes from Malicious File

Summary

A security issue affects the Tenda AC8 router's upload function, allowing an attacker to cause the router to crash remotely by sending a specially crafted file. This could lead to a denial of service, affecting internet access. Update the router's software to fix the issue.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions	Fix available
tenda	ac8_firmware	16.03.34.06	–

Original title

A vulnerability has been found in Tenda AC8 16.03.34.06. This affects the function webCgiGetUploadFile of the file /cgi-bin/UploadCfg of the component Httpd Service. The manipulation of the argumen...

Original description

A vulnerability has been found in Tenda AC8 16.03.34.06. This affects the function webCgiGetUploadFile of the file /cgi-bin/UploadCfg of the component Httpd Service. The manipulation of the argument boundary leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

nvd CVSS2.0 9.0

nvd CVSS3.1 8.8

nvd CVSS4.0 7.4

Vulnerability type

CWE-119 Buffer Overflow

CWE-121 Stack-based Buffer Overflow

https://github.com/master-abc/cve/issues/43 Issue Tracking
https://vuldb.com/?ctiid.347400 Permissions Required VDB Entry
https://vuldb.com/?id.347400 Third Party Advisory VDB Entry
https://vuldb.com/?submit.757240 Third Party Advisory VDB Entry
https://www.tenda.com.cn/ Product