Input validation error in Huawei products - CVE-2021-22320

Vulnerability identifier: #VU50909

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-22320

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a module cannot deal with specific messages correctly. A remote attacker can send malicious messages and perform a denial of service (DoS) attack.

Huawei Secospace USG6600
Huawei Secospace USG6500
Huawei Secospace USG6300
Huawei NIP6600
Huawei NIP6800
Huawei IPS Module
Huawei NGFW Module

Install updates from vendor's website.

Huawei Secospace USG6600 - update to V500R005SPH008
Huawei Secospace USG6500 - update to V500R005SPH008
Huawei Secospace USG6300 - update to V500R005C20SCP500
Huawei NIP6600 - update to V500R005SPH008
Huawei NIP6800 - update to V500R005SPH008
Huawei IPS Module - update to V500R005C20SPC500
Huawei NGFW Module - update to V500R005C20SPC500

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210210-03-dos-en

• Denial of service in Huawei Products