CVE-2020-9201 Denial of service in NIP6800;Secospace USG6600;USG9500

Medium 6.5 Published 24 Dec 2020 Updated 4 Aug 2024

Attackers can cause service abnormalities in Huawei network devices by sending crafted DHCP messages that trigger an out-of-bounds read.

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-2020-9201?

CVE-2020-9201 is a medium-severity denial of service vulnerability in Huawei Nip6800 Firmware, published on 24 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

There is an out-of-bounds read vulnerability in some versions of NIP6800, Secospace USG6600 and USG9500. The software reads data past the end of the intended buffer when parsing DHCP messages including crafted parameter. Successful exploit could cause certain service abnormal.

Weakness: CWE-125

Which versions are affected by CVE-2020-9201?

It affects 3 products.

Products include Huawei Nip6800 Firmware, Huawei Secospace Usg6600 Firmware, Huawei Usg9500 Firmware.

How do I fix CVE-2020-9201?

No fix has been published for CVE-2020-9201 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-9201 being exploited?

There is no known exploitation of CVE-2020-9201 in the wild and no public exploit code.

All Huawei Nip6800 Firmware vulnerabilities

Sources

Also known as GHSA-p7q8-r4h2-p9qq.