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RedhatCVE-2021-20206

HistoryMar 26, 2021 - 10:15 p.m.

CVE-2021-20206

2021-03-2622:15:12

CWE-20

CWE-22

redhat

web.nvd.nist.gov

386

cve-2021-20206

path name limitation

containernetworking/cni

vulnerability

confidentiality

integrity

system availability

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

AI Score

6.8

Confidence

High

EPSS

0.001

Percentile

47.3%

JSON

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.

Affected configurations

Nvd

Vulners

Node

linuxfoundationcontainer_network_interfaceRange<0.8.1

VendorProductVersionCPE
linuxfoundationcontainer_network_interface*cpe:2.3:a:linuxfoundation:container_network_interface:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linuxfoundation	container_network_interface	*	cpe:2.3:a:linuxfoundation:container_network_interface::::::::

CNA Affected

[
  {
    "product": "containernetworking-cni",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "containernetworking/cni 0.8.1"
      }
    ]
  }
]