SB2019110801 - Multiple vulnerabilities in Cisco Small Business RV Series Routers



SB2019110801 - Multiple vulnerabilities in Cisco Small Business RV Series Routers

Published: November 8, 2019 Updated: November 8, 2019

Security Bulletin ID SB2019110801
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 secuirty vulnerabilities.


1) Deserialization of Untrusted Data (CVE-ID: CVE-2019-15271)

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

The vulnerability exists due to insecure input validation when processing serialized data in the web-based management interface. A remote authenticated attacker can send a specially crafted HTTP request to the targeted device and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Input validation error (CVE-ID: CVE-2019-15957)

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

The vulnerability exists due to insufficient validation of user-supplied input in the web-based management interface. A remote authenticated administrator can provide malicious input to a specific field in the web-based management interface of an affected device and execute arbitrary commands on the underlying Linux operating system.


Remediation

Install update from vendor's website.