Multiple vulnerabilities in Huawei CV81-WDM FW

Published: 2022-04-28 | Updated: 2022-05-24

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-29797 CVE-2022-29798
CWE-ID	CWE-119 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	CV81-WDM FW Hardware solutions / Firmware
Vendor	Huawei

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated 24.05.2022

Added vulnerability #2

1) Buffer overflow

EUVDB-ID: #VU62672

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-29797

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote attacker can send a specially crafted message, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CV81-WDM FW: 01.70.49.29.46

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20220427-01-e9a493e2-en

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.

2) Input validation error

EUVDB-ID: #VU63552

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-2022-29798

CWE-ID: CWE-20 - Improper input validation