CVE-2021-41092: Docker CLI leaks private registry credentials to registry-1.docker.io
First published: Mon Oct 04 2021(Updated: )
## 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
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Docker Command Line Interface | <20.10.9 | |
| Fedoraproject Fedora | =34 | |
| Fedoraproject Fedora | =35 | |
| go/github.com/docker/cli | <20.10.9 | 20.10.9 |
| <20.10.9 | ||
| =34 | ||
| =35 |
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Reference Links
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://github.com/docker/cli/commit/893e52cf4ba4b048d72e99748e0f86b2767c6c6b
- https://github.com/docker/cli/security/advisories/GHSA-99pg-grm5-qq3v
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB/
- https://nvd.nist.gov/vuln/detail/CVE-2021-41092
- https://github.com/advisories/GHSA-99pg-grm5-qq3v (Advisory)
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Q6G6I4W5COQE25QMC7FJY3I3PAYFBB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNFADTCHHYWVM6W4NJ6CB4FNFM2VMBIB
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-41092.
What is the severity of CVE-2021-41092?
The severity of CVE-2021-41092 is high, with a CVSS score of 7.5.
What is the affected software?
The affected software includes Docker Command Line Interface, Fedora 34, and Fedora 35.
What is the description of CVE-2021-41092?
CVE-2021-41092 is a bug found in the Docker CLI where running 'docker login my-private-registry.example.com' with a misconfigured configuration file can lead to credential leakage.
Is there a fix available for CVE-2021-41092?
Yes, a fix is available for CVE-2021-41092. It is recommended to update to the latest version of Docker CLI.
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