CVE-2021-20853
CVSS V2 Medium 5.2
CVSS V3 Medium 6.8
Description
ELECOM LAN routers (WRH-733GBK firmware v1.02.9 and prior and WRH-733GWH firmware v1.02.9 and prior) allows a network-adjacent attacker with an administrator privilege to execute arbitrary OS commands via unspecified vectors.
Overview
- CVE ID
- CVE-2021-20853
- Assigner
- vultures@jpcert.or.jp
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-01T03:15:06
- Last Modified Date
- 2021-12-02T19:45:37
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:elecom:wrh-733gbk_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.02.9 | |
| cpe:2.3:h:elecom:wrh-733gbk:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:elecom:wrh-733gwh_firmware:*:*:*:*:*:*:*:* | 1 | OR | 1.02.9 | |
| cpe:2.3:h:elecom:wrh-733gwh:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 5.2
- Severity
- MEDIUM
- Exploitability Score
- 5.1
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.8
- Base Severity
- MEDIUM
- Exploitability Score
- 0.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://jvn.jp/en/jp/JVN88993473/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-2021-20853 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20853 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:43:31 | Added to TrackCVE | |||
| 2022-12-05 15:19:58 | 2021-12-01T03:15Z | 2021-12-01T03:15:06 | CVE Published Date | updated |
| 2022-12-05 15:19:58 | 2021-12-02T19:45:37 | CVE Modified Date | updated | |
| 2022-12-05 15:19:58 | Analyzed | Vulnerability Status | updated |