Improper Input Validation Affecting containernetworking-plugins package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.12% (49th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Improper Input Validation vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS8-CONTAINERNETWORKINGPLUGINS-1960075
  • published26 Jul 2021
  • disclosed5 Feb 2021

Introduced: 5 Feb 2021

CVE-2021-20206  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 containernetworking-plugins.

NVD Description

Note: Versions mentioned in the description apply only to the upstream containernetworking-plugins package and not the containernetworking-plugins package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the 'type' field in the network configuration, it is possible to use special elements such as "../" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as 'reboot'. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVSS Scores

version 3.1