privilege escalation in Moby (moby moby)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.08 % · percentile 65 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
Description
In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can modify files under "/var/lib/docker/<remapping>" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.
Weaknesses (CWE)
- CWE-22 — Improper Limitation of a Pathname to a Restricted Directory
References
- https://docs.docker.com/engine/release-notes/#20103
- https://github.com/moby/moby/releases/tag/v20.10.3
- https://github.com/moby/moby/releases/tag/v19.03.15
- https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc
- https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c
- https://security.netapp.com/advisory/ntap-20210226-0005/
- https://www.debian.org/security/2021/dsa-4865
- https://security.gentoo.org/glsa/202107-23
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N | GitHub_M |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 2.7 | AV:A/AC:L/Au:S/C:N/I:P/A:N | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-7452-xqpj-6rpc — moby Access to remapped root allows privilege escalation to real root
European references
- ENISA EUVD · EUVD-2024-0280
- GCVE · GCVE-0-2021-21284
CERT-FR advisories
- CERTFR-2021-AVI-700 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2021-AVI-490 — Multiples vulnérabilités dans IBM Spectrum Protect · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*< 19.03.15cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*≥ 20.0.0 < 20.10.3cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*≥ 11.0.0 ≤ 11.60.3
Affected products
| Product | Versions |
|---|---|
| moby · moby | affected < 19.03.15 ; affected >= 20.0.0, < 20.10.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |