CVE-2019-7390 Missing authorization in n/a

High 8.6 Published 5 Feb 2019 Updated 4 Aug 2024

Remote attackers can hijack DNS settings for all WLAN clients without authentication via the HNAP API on D-Link DIR-823G 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-2019-7390?

CVE-2019-7390 is a high-severity missing authorization vulnerability in Dlink Dir-823g Firmware, published on 5 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in /bin/goahead on D-Link DIR-823G devices with firmware 1.02B03. There is incorrect access control allowing remote attackers to hijack the DNS service configuration of all clients in the WLAN, without authentication, via the SetWanSettings HNAP API.

Weakness: CWE-306

Which versions are affected by CVE-2019-7390?

It affects 1 product.

Products include Dlink Dir-823g Firmware.

How do I fix CVE-2019-7390?

No fix has been published for CVE-2019-7390 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-2019-7390 being exploited?

There is no known exploitation of CVE-2019-7390 in the wild and no public exploit code.

All Dlink Dir-823g Firmware vulnerabilities

Sources

Also known as GHSA-8f9f-5jjh-xcjq.