CVE-2022-39395
Vulnérabilité critique dans server (go-vela)
Description
Vela is a Pipeline Automation (CI/CD) framework built on Linux container technology written in Golang. In Vela Server and Vela Worker prior to version 0.16.0 and Vela UI prior to version 0.17.0, some default configurations for Vela allow exploitation and container breakouts. Users should upgrade to Server 0.16.0, Worker 0.16.0, and UI 0.17.0 to fix the issue. After upgrading, Vela administrators will need to explicitly change the default settings to configure Vela as desired. Some of the fixes will interrupt existing workflows and will require Vela administrators to modify default settings. However, not applying the patch (or workarounds) will continue existing risk exposure. Some workarounds are available. Vela administrators can adjust the worker's `VELA_RUNTIME_PRIVILEGED_IMAGES` setting to be explicitly empty, leverage the `VELA_REPO_ALLOWLIST` setting on the server component to restrict access to a list of repositories that are allowed to be enabled, and/or audit enabled repositories and disable pull_requests if they are not needed.
Gravité et risque d'exploitation
CVE-2022-39395 obtient un score CVSS de 9.6/10, soit une gravité critique. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 1.20 %, ce qui la place devant 67.7 % des CVE référencées.
Que faire ?
- Vérifiez si server (versions < 0.16.0, < 0.17.0) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://github.com/go-vela/server/security/advisories/GHSA-5m7g-pj8w-7593
- https://github.com/go-vela/ui/security/advisories/GHSA-xf39-98m2-889v
- https://github.com/go-vela/worker/security/advisories/GHSA-2w78-ffv6-p46w
- https://github.com/go-vela/server/commit/05558ee99d70f7d6f83bed7c8f78ac0b35fa26f4
- https://docs.docker.com/engine/security/#docker-daemon-attack-surface
- https://github.com/go-vela/server/releases/tag/v0.16.0
- https://github.com/go-vela/ui/releases/tag/v0.17.0
- https://github.com/go-vela/worker/releases/tag/v0.16.0
- https://go-vela.github.io/docs/installation/server/reference/#vela_repo_allowlist
- https://go-vela.github.io/docs/installation/worker/reference/#vela_runtime_privileged_images