#VU88519 OS Command Injection in BUFFALO INC. products - CVE-2024-26023

Vulnerability identifier: #VU88519

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26023

CWE-ID: CWE-78

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
WCR-1166DS
Hardware solutions / Routers & switches, VoIP, GSM, etc
WSR-1166DHP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WSR-1166DHP2
Hardware solutions / Routers & switches, VoIP, GSM, etc
WSR-2533DHP
Hardware solutions / Routers & switches, VoIP, GSM, etc
WSR-2533DHPL
Hardware solutions / Routers & switches, VoIP, GSM, etc
WSR-2533DHP2
Hardware solutions / Routers & switches, VoIP, GSM, etc
WSR-A2533DHP2
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: BUFFALO INC.

Description

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

The vulnerability exists due to improper input validation. A remote administrator on the local network can pass specially crafted data to the application and execute arbitrary OS 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

WCR-1166DS: 1.32

WSR-1166DHP: 1.14

WSR-1166DHP2: 1.14

WSR-2533DHP: 1.06

WSR-2533DHPL: 1.06

WSR-2533DHP2: 1.10

WSR-A2533DHP2: 1.10

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External links
https://jvn.jp/en/jp/JVN58236836/index.html
https://www.buffalo.jp/news/detail/20240410-01.html

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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