NVD

CVE-2021-20716 Detail

Description

Hidden functionality in multiple Buffalo network devices (BHR-4RV firmware Ver.2.55 and prior, FS-G54 firmware Ver.2.04 and prior, WBR2-B11 firmware Ver.2.32 and prior, WBR2-G54 firmware Ver.2.32 and prior, WBR2-G54-KD firmware Ver.2.32 and prior, WBR-B11 firmware Ver.2.23 and prior, WBR-G54 firmware Ver.2.23 and prior, WBR-G54L firmware Ver.2.20 and prior, WHR2-A54G54 firmware Ver.2.25 and prior, WHR2-G54 firmware Ver.2.23 and prior, WHR2-G54V firmware Ver.2.55 and prior, WHR3-AG54 firmware Ver.2.23 and prior, WHR-G54 firmware Ver.2.16 and prior, WHR-G54-NF firmware Ver.2.10 and prior, WLA2-G54 firmware Ver.2.24 and prior, WLA2-G54C firmware Ver.2.24 and prior, WLA-B11 firmware Ver.2.20 and prior, WLA-G54 firmware Ver.2.20 and prior, WLA-G54C firmware Ver.2.20 and prior, WLAH-A54G54 firmware Ver.2.54 and prior, WLAH-AM54G54 firmware Ver.2.54 and prior, WLAH-G54 firmware Ver.2.54 and prior, WLI2-TX1-AG54 firmware Ver.2.53 and prior, WLI2-TX1-AMG54 firmware Ver.2.53 and prior, WLI2-TX1-G54 firmware Ver.2.20 and prior, WLI3-TX1-AMG54 firmware Ver.2.53 and prior, WLI3-TX1-G54 firmware Ver.2.53 and prior, WLI-T1-B11 firmware Ver.2.20 and prior, WLI-TX1-G54 firmware Ver.2.20 and prior, WVR-G54-NF firmware Ver.2.02 and prior, WZR-G108 firmware Ver.2.41 and prior, WZR-G54 firmware Ver.2.41 and prior, WZR-HP-G54 firmware Ver.2.41 and prior, WZR-RS-G54 firmware Ver.2.55 and prior, and WZR-RS-G54HP firmware Ver.2.55 and prior) allows a remote attacker to enable the debug option and to execute arbitrary code or OS commands, change the configuration, and cause a denial of service (DoS) condition.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 9.8 CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://jvn.jp/en/vu/JVNVU90274525/index.html	Third Party Advisory
https://www.buffalo.jp/news/detail/20210427-02.html	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-Other	Other	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

1 change records found show changes

Initial Analysis by NIST 5/07/2021 1:43:27 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:bhr-4rv_firmware::::::::* versions up to (including) 2.55 OR cpe:2.3:h:buffalo:bhr-4rv:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:fs-g54_firmware::::::::* versions up to (including) 2.04 OR cpe:2.3:h:buffalo:fs-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wbr-b11_firmware::::::::* versions up to (including) 2.23 OR cpe:2.3:h:buffalo:wbr-b11:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wbr-g54_firmware::::::::* versions up to (including) 2.23 OR cpe:2.3:h:buffalo:wbr-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wbr-g54l_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:buffalo:wbr-g54l:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wbr2-b11_firmware::::::::* versions up to (including) 2.32 OR cpe:2.3:h:buffalo:wbr2-b11:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wbr2-g54-kd_firmware::::::::* versions up to (including) 2.32 OR cpe:2.3:h:buffalo:wbr2-g54-kd:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wbr2-g54_firmware::::::::* versions up to (including) 2.32 OR cpe:2.3:h:buffalo:wbr2-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:whr-g54-nf_firmware::::::::* versions up to (including) 2.10 OR cpe:2.3:h:buffalo:whr-g54-nf:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:whr-g54_firmware::::::::* versions up to (including) 2.16 OR cpe:2.3:h:buffalo:whr-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:whr2-a54g54_firmware::::::::* versions up to (including) 2.25 OR cpe:2.3:h:buffalo:whr2-a54g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:whr2-g54_firmware::::::::* versions up to (including) 2.23 OR cpe:2.3:h:buffalo:whr2-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:whr2-g54v_firmware::::::::* versions up to (including) 2.55 OR cpe:2.3:h:buffalo:whr2-g54v:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:whr3-ag54_firmware::::::::* versions up to (including) 2.23 OR cpe:2.3:h:buffalo:whr3-ag54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wla-b11_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:buffalo:wla-b11:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wla-g54_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:buffalo:wla-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wla-g54c_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:buffalo:wla-g54c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wla2-g54_firmware::::::::* versions up to (including) 2.24 OR cpe:2.3:h:buffalo:wla2-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wla2-g54c_firmware::::::::* versions up to (including) 2.24 OR cpe:2.3:h:buffalo:wla2-g54c:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wlah-a54g54_firmware::::::::* versions up to (including) 2.54 OR cpe:2.3:h:buffalo:wlah-a54g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wlah-am54g54_firmware::::::::* versions up to (including) 2.54 OR cpe:2.3:h:buffalo:wlah-am54g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wlah-g54_firmware::::::::* versions up to (including) 2.54 OR cpe:2.3:h:buffalo:wlah-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wli-t1-b11_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:buffalo:wli-t1-b11:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wli-tx1-g54_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:buffalo:wli-tx1-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wli2-tx1-ag54_firmware::::::::* versions up to (including) 2.53 OR cpe:2.3:h:buffalo:wli2-tx1-ag54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wli2-tx1-amg54_firmware::::::::* versions up to (including) 2.53 OR cpe:2.3:h:buffalo:wli2-tx1-amg54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wli2-tx1-g54_firmware::::::::* versions up to (including) 2.20 OR cpe:2.3:h:buffalo:wli2-tx1-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wli3-tx1-amg54_firmware::::::::* versions up to (including) 2.53 OR cpe:2.3:h:buffalo:wli3-tx1-amg54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wli3-tx1-g54_firmware::::::::* versions up to (including) 2.53 OR cpe:2.3:h:buffalo:wli3-tx1-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wvr-g54-nf_firmware::::::::* versions up to (including) 2.02 OR cpe:2.3:h:buffalo:wvr-g54-nf:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wzr-g108_firmware::::::::* versions up to (including) 2.41 OR cpe:2.3:h:buffalo:wzr-g108:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wzr-g54_firmware::::::::* versions up to (including) 2.41 OR cpe:2.3:h:buffalo:wzr-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wzr-hp-g54_firmware::::::::* versions up to (including) 2.41 OR cpe:2.3:h:buffalo:wzr-hp-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wzr-rs-g54_firmware::::::::* versions up to (including) 2.55 OR cpe:2.3:h:buffalo:wzr-rs-g54:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:buffalo:wzr-rs-g54hp_firmware::::::::* versions up to (including) 2.55 OR cpe:2.3:h:buffalo:wzr-rs-g54hp:-:::::::*
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST NVD-CWE-Other
Changed	Reference Type	https://jvn.jp/en/vu/JVNVU90274525/index.html No Types Assigned	https://jvn.jp/en/vu/JVNVU90274525/index.html Third Party Advisory
Changed	Reference Type	https://www.buffalo.jp/news/detail/20210427-02.html No Types Assigned	https://www.buffalo.jp/news/detail/20210427-02.html Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-20716
NVD Published Date:
04/27/2021
NVD Last Modified:
05/07/2021
Source:
JPCERT/CC

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Information Technology Laboratory

National Vulnerability Database