The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is only accessible by an authenticated user. The vulnerability is in the logSet.asp page and can be exploited through the ServerIP parameter. Authentication can be achieved by exploiting CVE-2017-18371.
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
| Link | Tags |
|---|---|
| https://seclists.org/fulldisclosure/2017/Jan/40 | mailing list exploit third party advisory |
| https://ssd-disclosure.com/index.php/archives/2910 | exploit third party advisory technical description |
| https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/ | third party advisory technical description |
| https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt | third party advisory exploit |
| http://www.zyxel.com/support/announcement_unauthenticated.shtml | broken link |