CVE-2020-10749: Github.com/containernetworking/plugins Containernetworking/plugins Vulnerable To MitM Attacks Vulnerability

MODERATE
Advisory Identifier: GHSA-fx6x-h9g4-56f8
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CVSS 6.0
CWE-300
Published
Advisory Summary

CVE-2020-10749 is a MODERATE (CVSS 6.0) containernetworking/plugins vulnerable to mitm attacks vulnerability (CWE-300: Channel Accessible by Non-Endpoint) affecting Github.com/containernetworking/plugins libraries in the Go ecosystem. The issue involves containernetworking/plugins vulnerable to mitm attacks. Remediation is available by upgrading affected packages to version 0.8.6.

CVE-2020-10749 at a Glance

CVE Identifier CVE-2020-10749
GHSA Identifier GHSA-fx6x-h9g4-56f8
Severity MODERATE
CVSS v3.1 Base Score 6.0
CWE Classification CWE-300: Channel Accessible by Non-Endpoint
Affected Product Github.com/containernetworking/plugins
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2020-10749

To remediate this vulnerability, upgrade all affected Github.com/containernetworking/plugins dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/containernetworking/plugins fixed: 0.8.6 
Upgrade github.com/containernetworking/plugins to 0.8.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/containernetworking/plugins

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-10749, inspect your project dependencies for Github.com/containernetworking/plugins:

inspect dependencies for github.com/containernetworking/plugins

Analyze the terminal output to locate any version of Github.com/containernetworking/plugins in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.8.6), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-300: Channel Accessible by Non-Endpoint, where the product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint. In Github.com/containernetworking/plugins, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious containers in Kubernetes clusters to perform man-in-the-middle (MitM) attacks. A malicious container can exploit this flaw by sending rogue IPv6 router advertisements to the host or other containers, to redirect traffic to the malicious container.

CVE-2020-10749 Affected Github.com/containernetworking/plugins Versions

1 component(s)
Fixed Versions:
0.8.6
Product / Package Ecosystem Affected Versions Fixed Version
github.com/containernetworking/plugins
golang/github.com/containernetworking/plugins
Go
< 0.8.6
0.8.6

References

NVD — CVE-2020-10749 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10749
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10749
Github.com/containernetworking/plugins Source Repository REPOSITORY
https://github.com/containernetworking/plugins
Github.com/containernetworking/plugins Release RELEASE
https://github.com/containernetworking/plugins/releases/tag/v0.8.6
groups.google.com/forum/ WEB
https://groups.google.com/forum/#!topic/kubernetes-security-announce/BMb_6ICCfp8
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DV3HCDZYUTPPVDUMTZXDKK6IUO3JMGJC
Github.com/containernetworking/plugins Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00063.html
Github.com/containernetworking/plugins Security Information SECURITY
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00065.html

Frequently Asked Questions

What is CVE-2020-10749?
CVE-2020-10749 is a security vulnerability in Github.com/containernetworking/plugins involving containernetworking/plugins vulnerable to MitM attacks under CWE-300: Channel Accessible by Non-Endpoint.
Which Github.com/containernetworking/plugins versions are affected?
Affected versions include releases prior to 0.8.6 across affected packages: github.com/containernetworking/plugins.
What version fixes CVE-2020-10749?
Upgrading to 0.8.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/containernetworking/plugins affected?
Yes, github.com/containernetworking/plugins is affected in releases prior to 0.8.6. Upgrade your dependency to 0.8.6 or later.
What is the CVSS score of CVE-2020-10749?
CVE-2020-10749 has a CVSS v3.1 base score of 6.0 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L.
What CWE is associated with CVE-2020-10749?
CVE-2020-10749 is classified under CWE-300: Channel Accessible by Non-Endpoint (The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint.).
How can I check Go dependencies for CVE-2020-10749?
Run the dependency tree command: 'inspect dependencies for github.com/containernetworking/plugins'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fx6x-h9g4-56f8",
  "modified" : "2023-08-22T14:31:14Z",
  "published" : "2022-05-24T17:19:02Z",
  "aliases" : [ "CVE-2020-10749" ],
  "summary" : "containernetworking/plugins vulnerable to MitM attacks",
  "details" : "A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious containers in Kubernetes clusters to perform man-in-the-middle (MitM) attacks. A malicious container can exploit this flaw by sending rogue IPv6 router advertisements to the host or other containers, to redirect traffic to the malicious container.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/containernetworking/plugins"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.8.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-10749"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10749"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/containernetworking/plugins"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/containernetworking/plugins/releases/tag/v0.8.6"
  }, {
    "type" : "WEB",
    "url" : "https://groups.google.com/forum/#!topic/kubernetes-security-announce/BMb_6ICCfp8"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DV3HCDZYUTPPVDUMTZXDKK6IUO3JMGJC"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00063.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00065.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-300" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-13T20:04:42Z",
    "nvd_published_at" : "2020-06-03T14:15:00Z"
  }
}