CVE-2018-17777 Auth bypass in n/a

Critical 9.8 Published 18 Dec 2018 Updated 5 Aug 2024

Attackers can bypass login and gain admin access if the default Parental Control PIN is used, allowing full router control.

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-2018-17777?

CVE-2018-17777 is a critical authentication bypass vulnerability in n/a, published on 18 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on D-Link DVA-5592 A1_WI_20180823 devices. If the PIN of the page "/ui/cbpc/login" is the default Parental Control PIN (0000), it is possible to bypass the login form by editing the path of the cookie "sid" generated by the page. The attacker will have access to the router control panel with administrator privileges.

Weakness: CWE-287

Which versions are affected by CVE-2018-17777?

It affects 1 product.

Products include Dlink Dva-5592 Firmware.

How do I fix CVE-2018-17777?

No fix has been published for CVE-2018-17777 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-17777 being exploited?

There is no known exploitation of CVE-2018-17777 in the wild and no public exploit code.

Sources

Also known as GHSA-r292-8vw9-293g.