CVE-2018-3891 Security feature bypass in Yi Technology
An attacker with physical access can downgrade the firmware of Yi Home Cameras by inserting a specially crafted SD card, bypassing update security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-3891?
CVE-2018-3891 is a medium-severity vulnerability in unknown Yi Technology, published on 2 Nov 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An exploitable firmware downgrade vulnerability exists in the firmware update functionality of Yi Home Camera 27US 1.8.7.0D. A specially crafted file can cause a logic flaw, resulting in a firmware downgrade. An attacker can insert an SD card to trigger this vulnerability.
Which versions are affected by CVE-2018-3891?
It affects 1 product.
Products include Yitechnology Yi Home Camera Firmware.
How do I fix CVE-2018-3891?
No fix has been published for CVE-2018-3891 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-3891 being exploited?
There is no known exploitation of CVE-2018-3891 in the wild and no public exploit code.
Other vulnerabilities in unknown Yi Technology
Sources
Also known as GHSA-2vx9-h65m-6rg8.