NVD

CVE-2021-1602 Detail

Description

A vulnerability in the web-based management interface of Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to insufficient user input validation. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on an affected device using root-level privileges. Due to the nature of the vulnerability, only commands without parameters can be executed.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 9.8 CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Nist CVSS score does not match with CNA score

CNA: Cisco Systems, Inc.

Base Score: 8.2 HIGH

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-code-execution-9UVJr7k4	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	NIST
CWE-78	Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')	NIST Cisco Systems, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

1 change records found show changes

Initial Analysis by NIST 8/11/2021 2:48:41 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:small_business_rv_series_router_firmware::::::::* versions up to (excluding) 1.0.01.04 OR cpe:2.3:h:cisco:small_business_rv160:-:::::::* cpe:2.3:h:cisco:small_business_rv160w:-:::::::* cpe:2.3:h:cisco:small_business_rv260:-:::::::* cpe:2.3:h:cisco:small_business_rv260p:-:::::::* cpe:2.3:h:cisco:small_business_rv260w:-:::::::*
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-20
Added	CWE		NIST CWE-78
Changed	Reference Type	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-code-execution-9UVJr7k4 No Types Assigned	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-code-execution-9UVJr7k4 Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-1602
NVD Published Date:
08/04/2021
NVD Last Modified:
08/11/2021
Source:
Cisco Systems, Inc.

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