CVE-2017-2691 Auth bypass in Huawei P9

Medium 6.8 Published 22 Nov 2017 Updated 16 Sep 2024

An attacker can bypass the lock screen by forcing fastboot mode to delete the password file, gaining unauthorized access to the device.

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-2017-2691?

CVE-2017-2691 is a medium-severity authentication bypass vulnerability in Huawei P9, published on 22 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Huawei P9 versions earlier before EVA-AL10C00B373, versions earlier before EVA-CL00C92B373, versions earlier before EVA-DL00C17B373, versions earlier before EVA-TL00C01B373 have a lock-screen bypass vulnerability. An unauthenticated attacker could force the phone to the fastboot mode and delete the user's password file during the reboot process, then login the phone without screen lock password after reboot.

Which versions are affected by CVE-2017-2691?

It affects 1 product.

Products include Huawei P9 Firmware.

How do I fix CVE-2017-2691?

No fix has been published for CVE-2017-2691 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-2017-2691 being exploited?

There is no known exploitation of CVE-2017-2691 in the wild and no public exploit code.

Sources

Also known as GHSA-mf6g-r32j-f7qw.