NVD

CVE-2021-20863 Detail

Description

OS command injection vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmware v1.52 and prior, WRC-1750GS firmware v1.03 and prior, WRC-1750GSV firmware v2.11 and prior, WRC-1900GST firmware v1.03 and prior, WRC-2533GST firmware v1.03 and prior, WRC-2533GSTA firmware v1.03 and prior, WRC-2533GST2 firmware v1.25 and prior, WRC-2533GST2SP firmware v1.25 and prior, WRC-2533GST2-G firmware v1.25 and prior, and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent authenticated attackers to execute an arbitrary OS command with the root privilege via unspecified vectors.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 8.0 HIGH

Vector: CVSS:3.1/AV:A/AC:L/PR:L/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/JVNVU94527926/index.html	Third Party Advisory
https://www.elecom.co.jp/news/security/20211130-01/	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	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 12/02/2021 11:35:07 AM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:edwrc-2533gst2_firmware::::::::* versions up to (including) 1.25 OR cpe:2.3:h:elecom:edwrc-2533gst2:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-1167gst2_firmware::::::::* versions up to (including) 1.25 OR cpe:2.3:h:elecom:wrc-1167gst2:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-1167gst2a_firmware::::::::* versions up to (including) 1.25 OR cpe:2.3:h:elecom:wrc-1167gst2a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-1167gst2h_firmware::::::::* versions up to (including) 1.25 OR cpe:2.3:h:elecom:wrc-1167gst2h:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-1750gs_firmware::::::::* versions up to (including) 1.03 OR cpe:2.3:h:elecom:wrc-1750gs:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-1750gsv_firmware::::::::* versions up to (including) 2.11 OR cpe:2.3:h:elecom:wrc-1750gsv:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-1900gst_firmware::::::::* versions up to (including) 1.03 OR cpe:2.3:h:elecom:wrc-1900gst:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-2533gs2-b_firmware::::::::* versions up to (including) 1.52 OR cpe:2.3:h:elecom:wrc-2533gs2-b:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-2533gs2-w_firmware::::::::* versions up to (including) 1.52 OR cpe:2.3:h:elecom:wrc-2533gs2-w:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-2533gst2-g_firmware::::::::* versions up to (including) 1.25 OR cpe:2.3:h:elecom:wrc-2533gst2-g:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-2533gst2_firmware::::::::* versions up to (including) 1.25 OR cpe:2.3:h:elecom:wrc-2533gst2:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-2533gst2sp_firmware::::::::* versions up to (including) 1.25 OR cpe:2.3:h:elecom:wrc-2533gst2sp:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-2533gst_firmware::::::::* versions up to (including) 1.03 OR cpe:2.3:h:elecom:wrc-2533gst:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:elecom:wrc-2533gsta_firmware::::::::* versions up to (including) 1.03 OR cpe:2.3:h:elecom:wrc-2533gsta:-:::::::*
Added	CVSS V2		NIST (AV:A/AC:L/Au:S/C:C/I:C/A:C)
Added	CVSS V3.1		NIST AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-78
Changed	Reference Type	https://jvn.jp/en/vu/JVNVU94527926/index.html No Types Assigned	https://jvn.jp/en/vu/JVNVU94527926/index.html Third Party Advisory
Changed	Reference Type	https://www.elecom.co.jp/news/security/20211130-01/ No Types Assigned	https://www.elecom.co.jp/news/security/20211130-01/ Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-20863
NVD Published Date:
11/30/2021
NVD Last Modified:
12/02/2021
Source:
JPCERT/CC

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