CVE-2020-1831 Auth bypass in HUAWEI Mate 20

Low 2.4 Published Updated

Attackers can bypass digital balance time limits on Huawei Mate 20 devices by performing specific operations with a PC.

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-2020-1831?

CVE-2020-1831 is a low-severity authentication bypass vulnerability in HUAWEI Mate 20, published on 29 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

HUAWEI Mate 20 smartphones with versions earlier than 10.0.0.195(SP31C00E74R3P8) have an improper authorization vulnerability. The digital balance function does not sufficiently restrict the using time of certain user, successful exploit could allow the user break the limit of digital balance function after a series of operations with a PC.

Weakness: CWE-863

Which versions are affected by CVE-2020-1831?

It affects 1 product.

Products include Huawei Mate 20 Firmware.

How do I fix CVE-2020-1831?

No fix has been published for CVE-2020-1831 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-2020-1831 being exploited?

There is no known exploitation of CVE-2020-1831 in the wild and no public exploit code.

Sources

Also known as GHSA-9j32-v5x8-3g32.

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