CVE-2018-7937 Security feature bypass in HiRouter-CD20, WS5200-10

High 7.8 Published Updated

Attackers can bypass plugin signature checks to install malicious plugins, gaining root access and full control of Huawei routers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-7937?

CVE-2018-7937 is a high-severity vulnerability in Huawei Technologies Co., Ltd. HiRouter-CD20, WS5200-10, published on 4 Sep 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In Huawei HiRouter-CD20-10 with the versions before 1.9.6 and WS5200-10 with the versions before 1.9.6, there is a plug-in signature bypass vulnerability due to insufficient plug-in verification. An attacker may tamper with a legitimate plug-in to build a malicious plug-in and trick users into installing it. Successful exploit could allow the attacker to obtain the root permission of the device and take full control over the device.

Which versions are affected by CVE-2018-7937?

It affects 2 products.

Products include Huawei Hirouter-Cd20 Firmware, Huawei Ws5200-10 Firmware.

How do I fix CVE-2018-7937?

No fix has been published for CVE-2018-7937 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-7937 being exploited?

There is no known exploitation of CVE-2018-7937 in the wild and no public exploit code.

Sources

Also known as GHSA-r2pp-xf6c-g7rw.

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