CVE-2021-22320 Denial of service in IPS Module;NGFW Module;NIP6600;NIP6800;Secospace USG6300;Secospace USG6500;Secospace USG6600

High 7.5 Published 22 Mar 2021 Updated 3 Aug 2024

Attackers can cause denial of service on Huawei security appliances by sending malicious messages to a vulnerable module.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-22320?

CVE-2021-22320 is a high-severity denial of service vulnerability in Huawei Ips Module Firmware, published on 22 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a denial of service vulnerability in Huawei products. A module cannot deal with specific messages correctly. Attackers can exploit this vulnerability by sending malicious messages to an affected module. This can lead to denial of service. Affected product include some versions of IPS Module, NGFW Module, NIP6600, NIP6800, Secospace USG6300, Secospace USG6500 and Secospace USG6600.

Which versions are affected by CVE-2021-22320?

It affects 7 products.

Products include Huawei Ips Module Firmware, Huawei Ngfw Module Firmware, Huawei Nip6600 Firmware, Huawei Nip6800 Firmware, Huawei Secospace Usg6300 Firmware, Huawei Secospace Usg6500 Firmware and 1 more.

How do I fix CVE-2021-22320?

No fix has been published for CVE-2021-22320 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-2021-22320 being exploited?

There is no known exploitation of CVE-2021-22320 in the wild and no public exploit code.

All Huawei Ips Module Firmware vulnerabilities

Sources

Also known as GHSA-8j72-6cmw-672j.