Vulnerability identifier: #VU52638

Vulnerability risk: Medium

CVSSv3.1: 5.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-20092

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WSR-2533DHPL2
Hardware solutions / Routers & switches, VoIP, GSM, etc
WSR-2533DHP3
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: BUFFALO INC.

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the web interfaces. A remote attacker can bypass implemented security restrictions and gain unauthorized access to sensitive information on the system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

WSR-2533DHPL2: 1.02

WSR-2533DHP3: 1.24

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External links
http://www.tenable.com/security/research/tra-2021-13

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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.