CVE-2021-20864

published 2021-12-01

CVE-2021-20864: Improper access control vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware…

Priority P3 51 high 8.8 CVSS 3.1

AV A AC L PR N UI N S U C H I H A H

Improper access control 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 unauthenticated attacker to bypass access restriction, and to start the telnet service and execute an arbitrary OS command via unspecified vectors.

Affected

15 ranges

Vendor	Product	Version range	Fixed in
elecom	edwrc-2533gst2_firmware	<= 1.25	—
elecom	wrc-1167gst2_firmware	<= 1.25	—
elecom	wrc-1167gst2a_firmware	<= 1.25	—
elecom	wrc-1167gst2h_firmware	<= 1.25	—
elecom	wrc-1750gs_firmware	<= 1.03	—
elecom	wrc-1750gsv_firmware	<= 2.11	—
elecom	wrc-1900gst_firmware	<= 1.03	—
elecom	wrc-2533gs2-b_firmware	<= 1.52	—
elecom	wrc-2533gs2-w_firmware	<= 1.52	—
elecom	wrc-2533gst2-g_firmware	<= 1.25	—
elecom	wrc-2533gst2_firmware	<= 1.25	—
elecom	wrc-2533gst2sp_firmware	<= 1.25	—
elecom	wrc-2533gst_firmware	<= 1.03	—
elecom	wrc-2533gsta_firmware	<= 1.03	—
elecom_co_ltd	elecom_routers	—	—

CVSS provenance

nvd v3.1 8.8 HIGH CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 8.3 HIGH AV:A/AC:L/Au:N/C:C/I:C/A:C

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