CVE-2020-13389: 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/openSchedWifi schedStartTime and schedEndTime parameters for a POST request, a value is directly used in a strcpy 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-2020-13389?
CVE-2020-13389 is a buffer overflow vulnerability in the web server (httpd) of Tenda AC6, AC9, AC15, and AC18 devices.
Which devices are affected by CVE-2020-13389?
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 devices are affected by CVE-2020-13389.
What is the severity of CVE-2020-13389?
CVE-2020-13389 has a severity score of 9.8 (Critical).
How can I fix CVE-2020-13389?
To fix CVE-2020-13389, it is recommended to update the affected Tenda devices to the latest firmware version available.
Where can I find more information about CVE-2020-13389?
You can find more information about CVE-2020-13389 at the following references: [link1], [link2].