CVE-2018-14557 Memory corruption in n/a
A buffer overflow in the Tenda router web server allows remote attackers to execute arbitrary code via crafted POST requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-14557?
CVE-2018-14557 is a high-severity memory corruption vulnerability in Tenda Ac10 Firmware, published on 25 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered on Tenda AC7 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A buffer overflow vulnerability exists in the router's web server (httpd). When processing the page parameters for a post request, the value is directly written with sprintf to a local variable placed on the stack, which overrides the return address of the function, a causing buffer overflow.
Weakness: CWE-119
Which versions are affected by CVE-2018-14557?
It affects 3 products.
Products include Tenda Ac10 Firmware, Tenda Ac7 Firmware, Tenda Ac9 Firmware.
How do I fix CVE-2018-14557?
No fix has been published for CVE-2018-14557 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-14557 being exploited?
There is no known exploitation of CVE-2018-14557 in the wild and no public exploit code.
Other vulnerabilities in Tenda Ac10 Firmware
Sources
Also known as GHSA-x3q4-8jv2-7j83.