CVE-2019-9974 Missing authorization in n/a

Critical 9.1 Published Updated

Remote attackers can execute ping commands on DASAN H660RM routers without authentication, enabling LAN enumeration or denial of service.

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-2019-9974?

CVE-2019-9974 is a critical missing authorization vulnerability in n/a, published on 11 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

diag_tool.cgi on DASAN H660RM GPON routers with firmware 1.03-0022 lacks any authorization check, which allows remote attackers to run a ping command via a GET request to enumerate LAN devices or crash the router with a DoS attack.

Weakness: CWE-862, CWE-306

Which versions are affected by CVE-2019-9974?

It affects 1 product.

Products include Dasannetworks H660rm Firmware.

How do I fix CVE-2019-9974?

No fix has been published for CVE-2019-9974 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-2019-9974 being exploited?

There is no known exploitation of CVE-2019-9974 in the wild and no public exploit code.

Sources

Also known as GHSA-4qc2-r4q6-vfxr.

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