Vulnerability identifier: #VU53792

Vulnerability risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22377

CWE-ID: CWE-77

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Huawei S12700
Hardware solutions / Routers for home users
Huawei S5700
Hardware solutions / Routers for home users
Huawei S2700
Hardware solutions / Routers & switches, VoIP, GSM, etc
Huawei S6700
Hardware solutions / Routers & switches, VoIP, GSM, etc
Huawei S7700
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Huawei

Description

The vulnerability allows a remote user to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in the module. A remote administrator can pass specially crafted data to the application and execute arbitrary commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Huawei S12700: V200R019C00SPC500

Huawei S2700: V200R019C00SPC500

Huawei S5700: V200R019C00SPC500

Huawei S6700: V200R019C00SPC500

Huawei S7700: V200R019C00SPC500

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External links
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210602-01-cmdinj-en

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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