CVE-2021-34726
CVSS V2 High 7.2
CVSS V3 Medium 6.7
Description
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with root-level privileges on the underlying operating system of an affected device. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the CLI. The attacker must be authenticated as an administrative user to execute the affected commands. A successful exploit could allow the attacker to execute commands with root-level privileges.
Overview
- CVE ID
- CVE-2021-34726
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-23T03:15:19
- Last Modified Date
- 2022-10-24T14:25:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:* | 1 | OR | 18.4.6 | |
| cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:* | 1 | OR | 19.2.0 | 19.2.3 |
| cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:* | 1 | OR | 20.1 | 20.1.2 |
| cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:* | 1 | OR | 20.3 | 20.3.1 |
| cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:* | 1 | OR | 20.4 | 20.4.1 |
| cpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:* | 1 | OR | 20.5 | 20.5.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.7
- Base Severity
- MEDIUM
- Exploitability Score
- 0.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-maapi-cmdinjec-znUYTuC | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-34726 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34726 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:51:48 | Added to TrackCVE | |||
| 2022-12-05 11:09:47 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 11:09:47 | 2021-09-23T03:15Z | 2021-09-23T03:15:19 | CVE Published Date | updated |
| 2022-12-05 11:09:47 | 2022-10-24T14:25:01 | CVE Modified Date | updated | |
| 2022-12-05 11:09:47 | Analyzed | Vulnerability Status | updated |