CVE-2021-40120
CVSS V2 High 9
CVSS V3 High 7.2
Description
A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an authenticated, remote attacker with administrative privileges to inject arbitrary commands into the underlying operating system and execute them using root-level privileges. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to a specific field in the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system as a user with root-level privileges.
Overview
- CVE ID
- CVE-2021-40120
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-11-04T16:15:09
- Last Modified Date
- 2022-08-05T11:45:51
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:ios_xr:4.2.3.06:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:rv016:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:rv042:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:rv042g:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:rv082:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:rv320:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:rv325:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:cisco:application_extension_platform:1.5.1.13:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 9
- Severity
- HIGH
- Exploitability Score
- 8
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.2
- Base Severity
- HIGH
- Exploitability Score
- 1.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbrv-cmdinjection-Z5cWFdK | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-40120 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40120 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:48:05 | Added to TrackCVE | |||
| 2022-12-05 13:51:03 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 13:51:03 | 2021-11-04T16:15Z | 2021-11-04T16:15:09 | CVE Published Date | updated |
| 2022-12-05 13:51:03 | 2022-08-05T11:45:51 | CVE Modified Date | updated | |
| 2022-12-05 13:51:03 | Analyzed | Vulnerability Status | updated |