CVE-2020-13392: Buffer Overflow
An issue was discovered on Tenda AC6 V1.0 V15.03.05.19multiTD01, AC9 V1.0 V15.03.05.19(6318)CN, AC9 V3.0 V15.03.06.42multi, AC15 V1.0 V15.03.05.19multiTD01, and AC18 V15.03.05.19(6318)CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the /goform/setcfm funcpara1 parameter for a POST request, a value is directly used in a sprintf to a local variable placed on the stack, which overwrites the return address of a function. An attacker can construct a payload to carry out arbitrary code execution attacks.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2020-13392?
CVE-2020-13392 is a buffer overflow vulnerability in the httpd web server of Tenda AC6, AC9, AC15, and AC18 devices.
Which Tenda devices are affected by CVE-2020-13392?
Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, and AC18 V15.03.05.19(6318_)_CN are affected.
What is the severity of CVE-2020-13392?
The severity of CVE-2020-13392 is rated as critical with a CVSS score of 9.8.
How can I fix CVE-2020-13392?
To fix CVE-2020-13392, update the firmware of your Tenda AC6, AC9, AC15, or AC18 device to a version that addresses the vulnerability.
Where can I find more information about CVE-2020-13392?
You can find more information about CVE-2020-13392 on the following references: [Link 1](https://joel-malwarebenchmark.github.io) and [Link 2](https://joel-malwarebenchmark.github.io/blog/2020/04/28/cve-2020-13392-Tenda-vulnerability/).