Intelbras IWR 3000N Firmware 1.8.7

A CSRF issue was discovered on Intelbras IWR 3000N 1.8.7 devices, leading to complete control of the router, as demonstrated by v1/system/user.

Intelbras IWR 3000N 1.8.7 devices allow disclosure of the administrator login name and password because v1/system/user is mishandled, a related issue to CVE-2019-17600.

An issue was discovered on Intelbras IWR 3000N 1.8.7 devices. When the administrator password is changed from a certain client IP address, administrative authorization remains available to any client at that IP address, leading to complete control of the router.

An issue was discovered on Intelbras IWR 3000N 1.8.7 devices. A malformed login request allows remote attackers to cause a denial of service (reboot), as demonstrated by JSON misparsing of the \""} string to v1/system/login.