Denial of service in several Huawei products



Published: 2021-03-29
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-22393
CWE-ID CWE-20
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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Huawei CloudEngine 12800
Hardware solutions / Firmware

Huawei CloudEngine 5800
Hardware solutions / Routers & switches, VoIP, GSM, etc

Huawei CloudEngine 6800
Hardware solutions / Routers & switches, VoIP, GSM, etc

Huawei CloudEngine 7800
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor Huawei

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU51749

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22393

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to module design weakness. A remote attacker on the local network can send a large amount of specific messages and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei CloudEngine 12800: V200R002C50SPC800 - V200R005C10SPC800

Huawei CloudEngine 5800: V200R002C50SPC800 - V200R005C10SPC800

Huawei CloudEngine 6800: V200R002C50SPC800 - V200R005C10SPC800

Huawei CloudEngine 7800: V200R002C50SPC800 - V200R005C10SPC800

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210324-01-dos-en


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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