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JpcertCVE-2021-20860

HistoryDec 01, 2021 - 3:15 a.m.

CVE-2021-20860

2021-12-0103:15:07

CWE-352

jpcert

web.nvd.nist.gov

cve-2021-20860

cross-site request forgery

csrf

elecom lan routers

authentication hijacking

vulnerability awareness

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

37.2%

JSON

Cross-site request forgery (CSRF) vulnerability in ELECOM LAN 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 remote authenticated attacker to hijack the authentication of an administrator via a specially crafted page.

Affected configurations

Nvd

Vulners

Node

elecomwrc-1167gst2_firmwareRange≤1.25

AND

elecomwrc-1167gst2Match-

Node

elecomwrc-1167gst2a_firmwareRange≤1.25

AND

elecomwrc-1167gst2aMatch-

Node

elecomwrc-1167gst2h_firmwareRange≤1.25

AND

elecomwrc-1167gst2hMatch-

Node

elecomwrc-2533gs2-b_firmwareRange≤1.52

AND

elecomwrc-2533gs2-bMatch-

Node

elecomwrc-2533gs2-w_firmwareRange≤1.52

AND

elecomwrc-2533gs2-wMatch-

Node

elecomwrc-1750gs_firmwareRange≤1.03

AND

elecomwrc-1750gsMatch-

Node

elecomwrc-1750gsv_firmwareRange≤2.11

AND

elecomwrc-1750gsvMatch-

Node

elecomwrc-1900gst_firmwareRange≤1.03

AND

elecomwrc-1900gstMatch-

Node

elecomwrc-2533gst_firmwareRange≤1.03

AND

elecomwrc-2533gstMatch-

Node

elecomwrc-2533gst2_firmwareRange≤1.25

AND

elecomwrc-2533gst2Match-

Node

elecomwrc-2533gsta_firmwareRange≤1.03

AND

elecomwrc-2533gstaMatch-

Node

elecomwrc-2533gst2sp_firmwareRange≤1.25

AND

elecomwrc-2533gst2spMatch-

Node

elecomwrc-2533gst2-g_firmwareRange≤1.25

AND

elecomwrc-2533gst2-gMatch-

Node

elecomedwrc-2533gst2_firmwareRange≤1.25

AND

elecomedwrc-2533gst2Match-

VendorProductVersionCPE
elecomwrc-1167gst2_firmware*cpe:2.3:o:elecom:wrc-1167gst2_firmware:*:*:*:*:*:*:*:*
elecomwrc-1167gst2-cpe:2.3:h:elecom:wrc-1167gst2:-:*:*:*:*:*:*:*
elecomwrc-1167gst2a_firmware*cpe:2.3:o:elecom:wrc-1167gst2a_firmware:*:*:*:*:*:*:*:*
elecomwrc-1167gst2a-cpe:2.3:h:elecom:wrc-1167gst2a:-:*:*:*:*:*:*:*
elecomwrc-1167gst2h_firmware*cpe:2.3:o:elecom:wrc-1167gst2h_firmware:*:*:*:*:*:*:*:*
elecomwrc-1167gst2h-cpe:2.3:h:elecom:wrc-1167gst2h:-:*:*:*:*:*:*:*
elecomwrc-2533gs2-b_firmware*cpe:2.3:o:elecom:wrc-2533gs2-b_firmware:*:*:*:*:*:*:*:*
elecomwrc-2533gs2-b-cpe:2.3:h:elecom:wrc-2533gs2-b:-:*:*:*:*:*:*:*
elecomwrc-2533gs2-w_firmware*cpe:2.3:o:elecom:wrc-2533gs2-w_firmware:*:*:*:*:*:*:*:*
elecomwrc-2533gs2-w-cpe:2.3:h:elecom:wrc-2533gs2-w:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
elecom	wrc-1167gst2_firmware	*	cpe:2.3:o:elecom:wrc-1167gst2_firmware::::::::
elecom	wrc-1167gst2	-	cpe:2.3:h:elecom:wrc-1167gst2:-:::::::*
elecom	wrc-1167gst2a_firmware	*	cpe:2.3:o:elecom:wrc-1167gst2a_firmware::::::::
elecom	wrc-1167gst2a	-	cpe:2.3:h:elecom:wrc-1167gst2a:-:::::::*
elecom	wrc-1167gst2h_firmware	*	cpe:2.3:o:elecom:wrc-1167gst2h_firmware::::::::
elecom	wrc-1167gst2h	-	cpe:2.3:h:elecom:wrc-1167gst2h:-:::::::*
elecom	wrc-2533gs2-b_firmware	*	cpe:2.3:o:elecom:wrc-2533gs2-b_firmware::::::::
elecom	wrc-2533gs2-b	-	cpe:2.3:h:elecom:wrc-2533gs2-b:-:::::::*
elecom	wrc-2533gs2-w_firmware	*	cpe:2.3:o:elecom:wrc-2533gs2-w_firmware::::::::
elecom	wrc-2533gs2-w	-	cpe:2.3:h:elecom:wrc-2533gs2-w:-:::::::*

Rows per page:

1-10 of 281

CNA Affected

[
  {
    "product": "ELECOM LAN routers",
    "vendor": "ELECOM CO.,LTD.",
    "versions": [
      {
        "status": "affected",
        "version": "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"
      }
    ]
  }
]

References

jvn.jp/en/jp/JVN88993473/index.html

www.elecom.co.jp/news/security/20211130-01/

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.5

Confidence

High

EPSS

0.001

Percentile

37.2%

JSON

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