CVE-2020-6863 Missing authorization in E8820V3

Medium 6.5 Published Updated

Attackers can tamper with DDNS parameters and launch DoS attacks on ZTE E8820V3 routers due to missing access 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-2020-6863?

CVE-2020-6863 is a medium-severity missing authorization vulnerability in ZTE Corporation E8820V3, published on 27 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ZTE E8820V3 router product is impacted by a permission and access control vulnerability. Attackers could use this vulnerability to tamper with DDNS parameters and send DoS attacks on the specified URL.

Which versions are affected by CVE-2020-6863?

It affects 1 product.

Products include Zte E8820v3 Firmware.

How do I fix CVE-2020-6863?

No fix has been published for CVE-2020-6863 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-6863 being exploited?

There is no known exploitation of CVE-2020-6863 in the wild and no public exploit code.

Sources

Also known as GHSA-4hwc-x4x9-6gfq.

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