CVE-2019-17354 Missing authorization in n/a

Critical 9.4 Published Updated

Unauthenticated access to the WAN configuration page allows attackers to view and modify network settings on Zyxel routers.

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-2019-17354?

CVE-2019-17354 is a critical missing authorization vulnerability in n/a, published on 9 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

wan.htm page on Zyxel NBG-418N v2 with firmware version V1.00(AARP.9)C0 can be accessed directly without authentication, which can lead to disclosure of information about the WAN, and can also be leveraged by an attacker to modify data fields of the page.

Weakness: CWE-306

Which versions are affected by CVE-2019-17354?

It affects 1 product.

Products include Zyxel Nbg-418n V2 Firmware.

How do I fix CVE-2019-17354?

No fix has been published for CVE-2019-17354 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-2019-17354 being exploited?

There is no known exploitation of CVE-2019-17354 in the wild and no public exploit code.

Sources

Also known as GHSA-6cg4-5972-gc2x.

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