CVE-2018-1002101: K8s.io/kubernetes Kubernetes Arbitrary Command Injection Vulnerability

Q: What is CVE-2018-1002101?

CVE-2018-1002101 is a security vulnerability in K8s.io/kubernetes involving Kubernetes Arbitrary Command Injection under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').

Q: Which K8s.io/kubernetes versions are affected?

Affected versions include releases prior to 1.9.10, 1.10.6, 1.11.2 across affected packages: k8s.io/kubernetes.

Q: What version fixes CVE-2018-1002101?

Upgrading to 1.9.10, 1.10.6, 1.11.2 (or the latest patched release for your respective branch) resolves the vulnerability.

Q: Is k8s.io/kubernetes affected?

Yes, k8s.io/kubernetes is affected in releases prior to 1.9.10, 1.10.6, 1.11.2. Upgrade your dependency to 1.9.10, 1.10.6, 1.11.2 or later.

Q: What is the CVSS score of CVE-2018-1002101?

CVE-2018-1002101 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N.

Q: What CWE is associated with CVE-2018-1002101?

CVE-2018-1002101 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).

Q: How can I check Go dependencies for CVE-2018-1002101?

Run the dependency tree command: 'inspect dependencies for k8s.io/kubernetes'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

MODERATE

Advisory Identifier: GHSA-wqwf-x5cj-rg56

CVSS 5.9

CWE-78

Published 2022-02-15

Advisory Summary

CVE-2018-1002101 is a MODERATE (CVSS 5.9) kubernetes arbitrary command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting K8s.io/kubernetes libraries in the Go ecosystem. The issue involves kubernetes arbitrary command injection. Remediation is available by upgrading affected packages to version 1.9.10, 1.10.6, 1.11.2.

CVE-2018-1002101 at a Glance

CVE Identifier CVE-2018-1002101

GHSA Identifier GHSA-wqwf-x5cj-rg56

Severity MODERATE

CVSS v3.1 Base Score 5.9

CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Product K8s.io/kubernetes

Package Ecosystem Go

Published Date 2022-02-15

Last Updated 2023-10-02

Security Impact

CVSS: 5.9

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N).

Attack Vector Network (AV:N)

Attack Complexity High (AC:H)

Privileges Required High (PR:H)

User Interaction None (UI:N)

Scope Unchanged (S:U)

Confidentiality High (C:H)

Integrity High (I:H)

Availability None (A:N)

How to Fix CVE-2018-1002101

To remediate this vulnerability, upgrade all affected K8s.io/kubernetes dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

k8s.io/kubernetes fixed: 1.9.10

Upgrade k8s.io/kubernetes to 1.9.10

k8s.io/kubernetes fixed: 1.10.6

Upgrade k8s.io/kubernetes to 1.10.6

k8s.io/kubernetes fixed: 1.11.2

Upgrade k8s.io/kubernetes to 1.11.2

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 k8s.io/kubernetes

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-1002101, inspect your project dependencies for K8s.io/kubernetes:

inspect dependencies for k8s.io/kubernetes

Analyze the terminal output to locate any version of K8s.io/kubernetes in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.9.10), 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-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. In K8s.io/kubernetes, 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

In Kubernetes versions 1.9.0-1.9.9, 1.10.0-1.10.5, and 1.11.0-1.11.1, user input was handled insecurely while setting up volume mounts on Windows nodes, which could lead to command line argument injection. ### Specific Go Packages Affected k8s.io/kubernetes/pkg/util/mount

CVE-2018-1002101 Affected K8s.io/kubernetes Versions

3 component(s)

Fixed Versions:

1.9.101.10.61.11.2

Product / Package	Ecosystem	Affected Versions	Fixed Version
k8s.io/kubernetes golang/k8s.io/kubernetes	Go	≥ 1.9.0 < 1.9.10	1.9.10
k8s.io/kubernetes golang/k8s.io/kubernetes	Go	≥ 1.10.0 < 1.10.6	1.10.6
k8s.io/kubernetes golang/k8s.io/kubernetes	Go	≥ 1.11.0 < 1.11.2	1.11.2

References

NVD — CVE-2018-1002101 NVD

https://nvd.nist.gov/vuln/detail/CVE-2018-1002101

K8s.io/kubernetes Source Repository REPOSITORY

https://github.com/kubernetes/kubernetes/issues/65750

K8s.io/kubernetes Source Repository REPOSITORY

https://github.com/kubernetes/kubernetes/pull/65751

Security Fix Commit FIX COMMIT

https://github.com/kubernetes/kubernetes/commit/d65039c56ce4de5f2efdc38aa1284eeb95f89169

K8s.io/kubernetes Security Information SECURITY

https://security.netapp.com/advisory/ntap-20190416-0008

K8s.io/kubernetes Security Information SECURITY

http://www.securityfocus.com/bid/106238

Frequently Asked Questions

What is CVE-2018-1002101?

CVE-2018-1002101 is a security vulnerability in K8s.io/kubernetes involving Kubernetes Arbitrary Command Injection under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').

Which K8s.io/kubernetes versions are affected?

Affected versions include releases prior to 1.9.10, 1.10.6, 1.11.2 across affected packages: k8s.io/kubernetes.

What version fixes CVE-2018-1002101?

Upgrading to 1.9.10, 1.10.6, 1.11.2 (or the latest patched release for your respective branch) resolves the vulnerability.

Is k8s.io/kubernetes affected?

Yes, k8s.io/kubernetes is affected in releases prior to 1.9.10, 1.10.6, 1.11.2. Upgrade your dependency to 1.9.10, 1.10.6, 1.11.2 or later.

What is the CVSS score of CVE-2018-1002101?

CVE-2018-1002101 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N.

What CWE is associated with CVE-2018-1002101?

CVE-2018-1002101 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).

How can I check Go dependencies for CVE-2018-1002101?

Run the dependency tree command: 'inspect dependencies for k8s.io/kubernetes'. 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-wqwf-x5cj-rg56",
  "modified" : "2023-10-02T11:35:37Z",
  "published" : "2022-02-15T01:57:18Z",
  "aliases" : [ "CVE-2018-1002101" ],
  "summary" : "Kubernetes Arbitrary Command Injection",
  "details" : "In Kubernetes versions 1.9.0-1.9.9, 1.10.0-1.10.5, and 1.11.0-1.11.1, user input was handled insecurely while setting up volume mounts on Windows nodes, which could lead to command line argument injection.\n\n### Specific Go Packages Affected\nk8s.io/kubernetes/pkg/util/mount",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.9.0"
      }, {
        "fixed" : "1.9.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.10.0"
      }, {
        "fixed" : "1.10.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "k8s.io/kubernetes"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.11.0"
      }, {
        "fixed" : "1.11.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1002101"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/issues/65750"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/pull/65751"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kubernetes/kubernetes/commit/d65039c56ce4de5f2efdc38aa1284eeb95f89169"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20190416-0008"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/106238"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-12T18:22:09Z",
    "nvd_published_at" : null
  }
}

CVSS V3

5.9 MODERATE