Vulnerability identifier: #VU50909

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22320

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Huawei IPS Module
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei NIP6600
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei NIP6800
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei NGFW Module
Server applications / Other server solutions
Huawei Secospace USG6300
Server applications / Server solutions for antivurus protection
Huawei Secospace USG6500
Server applications / Server solutions for antivurus protection
Huawei Secospace USG6600
Server applications / Server solutions for antivurus protection

Vendor: Huawei

Description

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Huawei IPS Module: V500R005C00SPC100 - V500R005C20SPC300

Huawei NGFW Module: V500R005C00SPC100 - V500R005C20SPC300

Huawei NIP6600: V500R001C30SPC200 - V500R005C20SPC500

Huawei NIP6800: V500R001C60SPC500 - V500R005C20SPC500

Huawei Secospace USG6300: V500R001C30SPC200 - V500R005C20SPC500

Huawei Secospace USG6500: V500R001C30SPC200 - V500R005C20SPC500

Huawei Secospace USG6600: V500R001C30SPC200 - V500R005C20SPC500

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External links
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210210-03-dos-en

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.