Multiple vulnerabilities in Huawei 4G Router B612

Published: 2020-08-26 | Updated: 2020-08-27

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-9085 CVE-2020-9086
CWE-ID	CWE-476 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Huawei 4G Router B612 Hardware solutions / Routers & switches, VoIP, GSM, etc
Vendor	Huawei

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated 27.08.2020
Added vulnerability #2

1) NULL pointer dereference

EUVDB-ID: #VU46078

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9085

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can send specially crafted POST messages and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei 4G Router B612: B612s-25dTCPU-V100R001B192D03SP00C234 - B612s-25dTCPU-V100R001B192D05SP00C00

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200826-01-pointer_en

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Buffer overflow

EUVDB-ID: #VU46090

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-2020-9086

CWE-ID: CWE-119 - Memory corruption