SB2021040810 - Multiple vulnerabilities in Cisco Small Business RV Series Routers

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Main Vulnerability Database SB2021040810

SB2021040810 - Multiple vulnerabilities in Cisco Small Business RV Series Routers

Published: April 8, 2021

Security Bulletin ID SB2021040810
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper access control (CVE-ID: CVE-2021-1472)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:A/U:Green


The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted HTTP request, upload files to directories that should have been restricted.


2) Command Injection (CVE-ID: CVE-2021-1473)

CWE-ID: CWE-77 - Command injection

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber


The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in the web-based management interface. A remote attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.


Remediation

Install update from vendor's website.

References