Executive Summary
This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-20863 | First vendor Publication | 2021-12-01 |
| Vendor | Cve | Last vendor Modification | 2021-12-02 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 8 | ||
| Base Score | 8 | Environmental Score | 8 |
| impact SubScore | 5.9 | Temporal Score | 8 |
| Exploitabality Sub Score | 2.1 | ||
| Attack Vector | Adjacent | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:A/AC:L/Au:S/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 7.7 | Attack Range | Adjacent network |
| Cvss Impact Score | 10 | Attack Complexity | Low |
| Cvss Expoit Score | 5.1 | Authentication | Requires single instance |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| 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. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20863 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-78 | Improper Sanitization of Special Elements used in an OS Command ('OS Command Injection') (CWE/SANS Top 25) |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Os | 1 | |
| Os | 1 |
Sources (Detail)
| Source | Url |
|---|---|
| MISC | https://jvn.jp/en/vu/JVNVU94527926/index.html https://www.elecom.co.jp/news/security/20211130-01/ |
Alert History
| Date | Informations |
|---|---|
| 2021-12-02 21:22:55 |
|
| 2021-12-01 09:23:31 |
|
