CVE-2021-20863
CVSS V2 High 7.7
CVSS V3 High 8
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.
Overview
- CVE ID
- CVE-2021-20863
- Assigner
- vultures@jpcert.or.jp
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-01T03:15:07
- Last Modified Date
- 2021-12-02T16:35:06
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
AND | ||||
cpe:2.3:o:elecom:wrc-1167gst2_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.25 | |
cpe:2.3:h:elecom:wrc-1167gst2:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-1167gst2a_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.25 | |
cpe:2.3:h:elecom:wrc-1167gst2a:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-1167gst2h_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.25 | |
cpe:2.3:h:elecom:wrc-1167gst2h:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-2533gs2-b_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.52 | |
cpe:2.3:h:elecom:wrc-2533gs2-b:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-2533gs2-w_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.52 | |
cpe:2.3:h:elecom:wrc-2533gs2-w:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-1750gs_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.03 | |
cpe:2.3:h:elecom:wrc-1750gs:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-1750gsv_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.11 | |
cpe:2.3:h:elecom:wrc-1750gsv:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-1900gst_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.03 | |
cpe:2.3:h:elecom:wrc-1900gst:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-2533gst_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.03 | |
cpe:2.3:h:elecom:wrc-2533gst:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-2533gst2_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.25 | |
cpe:2.3:h:elecom:wrc-2533gst2:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-2533gsta_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.03 | |
cpe:2.3:h:elecom:wrc-2533gsta:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-2533gst2sp_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.25 | |
cpe:2.3:h:elecom:wrc-2533gst2sp:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:wrc-2533gst2-g_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.25 | |
cpe:2.3:h:elecom:wrc-2533gst2-g:-:*:*:*:*:*:*:* | 0 | OR | ||
AND | ||||
cpe:2.3:o:elecom:edwrc-2533gst2_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.25 | |
cpe:2.3:h:elecom:edwrc-2533gst2:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:S/C:C/I:C/A:C
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.7
- Severity
- HIGH
- Exploitability Score
- 5.1
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8
- Base Severity
- HIGH
- Exploitability Score
- 2.1
- Impact Score
- 5.9
References
Reference URL | Reference Tags |
---|---|
https://jvn.jp/en/vu/JVNVU94527926/index.html | Third Party Advisory |
https://www.elecom.co.jp/news/security/20211130-01/ | Vendor Advisory |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-20863 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20863 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 06:43:34 | Added to TrackCVE | |||
2022-12-05 15:20:42 | 2021-12-01T03:15Z | 2021-12-01T03:15:07 | CVE Published Date | updated |
2022-12-05 15:20:42 | 2021-12-02T16:35:06 | CVE Modified Date | updated | |
2022-12-05 15:20:42 | Analyzed | Vulnerability Status | updated |