CVE-2018-1164 Missing authorization in ZyXEL P-870H-51 DSL Router
Remote attackers can reboot ZyXEL DSL routers and access critical functions without authentication due to improper access controls on CGI endpoints.
- 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-2018-1164?
CVE-2018-1164 is a critical missing authorization vulnerability in ZyXEL P-870H-51 DSL Router, published on 21 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This vulnerability allows remote attackers to cause a denial-of-service condition on vulnerable installations of ZyXEL P-870H-51 DSL Router 1.00(AWG.3)D5. Authentication is not required to exploit this vulnerability. The specific flaw exists within numerous exposed CGI endpoints. The vulnerability is caused by improper access controls that allow access to critical functions without authentication. An attacker can use this vulnerability to reboot affected devices, along with other actions. Was ZDI-CAN-4540.
Which versions are affected by CVE-2018-1164?
It affects 1 product.
Products include Zyxel P-870h-51 Firmware.
How do I fix CVE-2018-1164?
No fix has been published for CVE-2018-1164 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2018-1164 being exploited?
There is no known exploitation of CVE-2018-1164 in the wild and no public exploit code.
Sources
Also known as GHSA-943g-cpqh-7wmv.