PT-2020-2671 · Cisco · Cisco Ios

Published 2020-06-03 · Updated 2021-10-19 · CVE-2020-3205

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) (affected versions not specified)

Description A vulnerability in the implementation of the inter-VM channel of Cisco IOS Software 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. 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.

Recommendations Cisco has released software updates that address this vulnerability. Update to the latest software version to resolve the issue. There are no workarounds that address this vulnerability.

Fix

OS Command Injection

RCE

Weakness Enumeration

CWE-78

CWE-20

Related Identifiers

BDU:2020-02738

CVE-2020-3205

Affected Products

Cisco Ios

References · 4

• https://osv.dev/vulnerability/CVE-2020-3205 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-udp-vds-inj-f2D5Jzrt · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3205 · Security Note
• https://bdu.fstec.ru/vul/2020-02738 · Security Note