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Cisco IOS Software for Cisco 809 and 829 Improper Input Validation Vulnerability

Summary

A vulnerability in the implementation of the inter-VM channel of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, adjacent attacker to execute arbitrary shell commands on the Virtual Device Server (VDS) of an affected device. The vulnerability is due to insufficient validation of signaling packets that are destined to VDS.

Credit:

The information has been provided by Vendor

The original article can be found at:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-udp-vds-inj-f2D5Jzrt

Details

An attacker could exploit this vulnerability by sending malicious packets to an affected device. A successful exploit could allow the attacker to execute arbitrary commands in the context of the Linux shell of VDS with the privileges of the root user. Because the device is designed on a hypervisor architecture, exploitation of a vulnerability that affects the inter-VM channel may lead to a complete system compromise. For more information about this vulnerability, see the Details section of this advisory.

Vulnerable Systems:

Cisco IOS Software for Cisco 809 and 829 

Industrial Integrated Services Routers (Industrial ISRs)

Cisco 1000 Series Connected Grid Routers (CGR1000)

CVE Information:

CVE-2020-3205

Disclosure Timeline:
Published Date:6/3/2020

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