CVE-2021-41092: Github.com/docker/cli Docker CLI Leaks Private Registry Vulnerability

MODERATE
Advisory Identifier: GHSA-99pg-grm5-qq3v
Share
CVSS 5.4
CWE-522 CWE-200
Published
Advisory Summary

CVE-2021-41092 is a MODERATE (CVSS 5.4) docker cli leaks private registry vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Github.com/docker/cli libraries in the Go ecosystem. The issue involves docker cli leaks private registry credentials to registry-1.docker.io. Remediation is available by upgrading affected packages to version 20.10.9.

CVE-2021-41092 at a Glance

CVE Identifier CVE-2021-41092
GHSA Identifier GHSA-99pg-grm5-qq3v
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-522: Insufficiently Protected Credentials
Affected Product Github.com/docker/cli
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.4

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

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

How to Fix CVE-2021-41092

To remediate this vulnerability, upgrade all affected Github.com/docker/cli 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/docker/cli fixed: 20.10.9 
Upgrade github.com/docker/cli to 20.10.9
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/docker/cli

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-41092, inspect your project dependencies for Github.com/docker/cli:

inspect dependencies for github.com/docker/cli

Analyze the terminal output to locate any version of Github.com/docker/cli in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 20.10.9), 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-522: Insufficiently Protected Credentials, where the product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. In Github.com/docker/cli, 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

## Impact A bug was found in the Docker CLI where running `docker login my-private-registry.example.com` with a misconfigured configuration file (typically `~/.docker/config.json`) listing a `credsStore` or `credHelpers` that could not be executed would result in any provided credentials being sent to `registry-1.docker.io` rather than the intended private registry. ## Patches This bug has been fixed in Docker CLI 20.10.9. Users should update to this version as soon as possible. ## Workarounds Ensure that any configured `credsStore` or `credHelpers` entries in the configuration file reference an installed credential helper that is executable and on the `PATH`. ## For more information If you have any questions or comments about this advisory: * [Open an issue](https://github.com/docker/cli/issues/new/choose) * Email us at security@docker.com if you think you’ve found a security bug

CVE-2021-41092 Affected Github.com/docker/cli Versions

1 component(s)
Fixed Versions:
20.10.9
Product / Package Ecosystem Affected Versions Fixed Version
github.com/docker/cli
golang/github.com/docker/cli
Go
< 20.10.9
20.10.9

References

GitHub Advisory / Wiki ADVISORY
https://github.com/docker/cli/security/advisories/GHSA-99pg-grm5-qq3v
NVD — CVE-2021-41092 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41092
Security Fix Commit FIX COMMIT
https://github.com/docker/cli/commit/893e52cf4ba4b048d72e99748e0f86b2767c6c6b
cert-portal.siemens.com/productcert/pdf/ssa... WEB
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB
lists.fedoraproject.org/archives/list/packa... WEB
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB

Frequently Asked Questions

What is CVE-2021-41092?
CVE-2021-41092 is a security vulnerability in Github.com/docker/cli involving Docker CLI leaks private registry credentials to registry-1.docker.io under CWE-522: Insufficiently Protected Credentials.
Which Github.com/docker/cli versions are affected?
Affected versions include releases prior to 20.10.9 across affected packages: github.com/docker/cli.
What version fixes CVE-2021-41092?
Upgrading to 20.10.9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/docker/cli affected?
Yes, github.com/docker/cli is affected in releases prior to 20.10.9. Upgrade your dependency to 20.10.9 or later.
What is the CVSS score of CVE-2021-41092?
CVE-2021-41092 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N.
What CWE is associated with CVE-2021-41092?
CVE-2021-41092 is classified under CWE-522: Insufficiently Protected Credentials (The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.).
How can I check Go dependencies for CVE-2021-41092?
Run the dependency tree command: 'inspect dependencies for github.com/docker/cli'. 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-99pg-grm5-qq3v",
  "modified" : "2024-07-05T21:43:24Z",
  "published" : "2024-06-10T18:38:49Z",
  "aliases" : [ "CVE-2021-41092" ],
  "summary" : "Docker CLI leaks private registry credentials to registry-1.docker.io",
  "details" : "## Impact\n\nA bug was found in the Docker CLI where running `docker login my-private-registry.example.com` with a misconfigured configuration file (typically `~/.docker/config.json`) listing a `credsStore` or `credHelpers` that could not be executed would result in any provided credentials being sent to `registry-1.docker.io` rather than the intended private registry.\n\n## Patches\n\nThis bug has been fixed in Docker CLI 20.10.9.  Users should update to this version as soon as possible.\n\n## Workarounds\n\nEnsure that any configured `credsStore` or `credHelpers` entries in the configuration file reference an installed credential helper that is executable and on the `PATH`.\n\n## For more information\n\nIf you have any questions or comments about this advisory:\n\n* [Open an issue](https://github.com/docker/cli/issues/new/choose)\n* Email us at security@docker.com if you think you’ve found a security bug",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/docker/cli"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "20.10.9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/docker/cli/security/advisories/GHSA-99pg-grm5-qq3v"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-41092"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/docker/cli/commit/893e52cf4ba4b048d72e99748e0f86b2767c6c6b"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-522" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-06-10T18:38:49Z",
    "nvd_published_at" : "2021-10-04T20:15:00Z"
  }
}