CVE-2019-16412 Denial of service in n/a
Attackers can crash Tenda N301 routers by setting a zero WAN MTU value, bypassing GUI restrictions.
- 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-2019-16412?
CVE-2019-16412 is a high-severity denial of service vulnerability in n/a, published on 19 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In goform/setSysTools on Tenda N301 wireless routers, attackers can trigger a device crash via a zero wanMTU value. (Prohibition of this zero value is only enforced within the GUI.)
Weakness: CWE-20
Which versions are affected by CVE-2019-16412?
It affects 1 product.
Products include Tendacn N301 Firmware.
How do I fix CVE-2019-16412?
No fix has been published for CVE-2019-16412 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-16412 being exploited?
There is no known exploitation of CVE-2019-16412 in the wild and no public exploit code.
Sources
Also known as GHSA-cfhr-prfj-mx65.