CVE-2020-24376 Server-side request forgery in n/a

Critical 9.6 Published 16 Sep 2020 Updated 4 Aug 2024

Attackers can exploit DNS rebinding in UPnP IGD to bypass network restrictions and access internal resources on Freebox routers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2020-24376?

CVE-2020-24376 is a critical server-side request forgery vulnerability in n/a, published on 16 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A DNS rebinding vulnerability in the UPnP IGD implementations in Freebox v5 before 1.5.29 and Freebox Server before 4.2.3.

Weakness: CWE-20

Which versions are affected by CVE-2020-24376?

It affects 5 products.

Products include Free Freebox Delta Firmware, Free Freebox Mini Firmware, Free Freebox One Firmware, Free Freebox Pop Firmware, Free Freebox Revolution Firmware.

How do I fix CVE-2020-24376?

No fix has been published for CVE-2020-24376 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2020-24376 being exploited?

There is no known exploitation of CVE-2020-24376 in the wild and no public exploit code.

Sources

Also known as GHSA-hm8v-p29w-fjv8.