CVE-2018-3934 Auth bypass in Yi Technology

Critical 9.0 Published 2 Nov 2018 Updated 5 Aug 2024

An attacker can bypass authentication and execute code on Yi Home Cameras by sending crafted UDP packets, requiring network access.

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-2018-3934?

CVE-2018-3934 is a critical authentication bypass vulnerability in unknown Yi Technology, published on 2 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An exploitable code execution vulnerability exists in the firmware update functionality of Yi Home Camera 27US 1.8.7.0D. A specially crafted set of UDP packets can cause a logic flaw, resulting in an authentication bypass. An attacker can sniff network traffic and send a set of packets to trigger this vulnerability.

Which versions are affected by CVE-2018-3934?

It affects 1 product.

Products include Yitechnology Yi Home Camera Firmware.

How do I fix CVE-2018-3934?

No fix has been published for CVE-2018-3934 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-2018-3934 being exploited?

There is no known exploitation of CVE-2018-3934 in the wild and no public exploit code.

Sources

Also known as GHSA-57rq-jwm6-m8pv.