CVE-2024-47179
Vulnérabilité élevée dans RSSHub (DIYgod)
Description
RSSHub is an RSS network. Prior to commit 64e00e7, RSSHub's `docker-test-cont.yml` workflow is vulnerable to Artifact Poisoning, which could have lead to a full repository takeover. Downstream users of RSSHub are not vulnerable to this issue, and commit 64e00e7 fixed the underlying issue and made the repository no longer vulnerable. The `docker-test-cont.yml` workflow gets triggered when the `PR - Docker build test` workflow completes successfully. It then collects some information about the Pull Request that triggered the triggering workflow and set some labels depending on the PR body and sender. If the PR also contains a `routes` markdown block, it will set the `TEST_CONTINUE` environment variable to `true`. The workflow then downloads and extracts an artifact uploaded by the triggering workflow which is expected to contain a single `rsshub.tar.zst` file. However, prior to commit 64e00e7, it did not validate and the contents were extracted in the root of the workspace overriding any existing files. Since the contents of the artifact were not validated, it is possible for a malicious actor to send a Pull Request which uploads, not just the `rsshub.tar.zst` compressed docker image, but also a malicious `package.json` file with a script to run arbitrary code in the context of the privileged workflow. As of commit 64e00e7, this scenario has been addressed and the RSSHub repository is no longer vulnerable.
Gravité et risque d'exploitation
CVE-2024-47179 obtient un score CVSS de 8.8/10, soit une gravité élevée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.73 %, ce qui la place devant 53.6 % des CVE référencées.
Que faire ?
- Vérifiez si RSSHub (versions < 64e00e7) 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/DIYgod/RSSHub/security/advisories/GHSA-9mqc-fm24-h8cw
- https://github.com/DIYgod/RSSHub/commit/64e00e743aba2a239508fea97825994e3d687ecc
- https://codeql.github.com/codeql-query-help/javascript/js-actions-command-injection
- https://github.com/DIYgod/RSSHub/actions/runs/10141104413/job/28037643579#step:1:17
- https://github.com/DIYgod/RSSHub/blob/e08733f94c81440d19ee6a5fd5e915e9a65395f5/.github/workflows/docker-test-cont.yml
- https://securitylab.github.com/advisories/GHSL-2024-178_RSSHub
- https://securitylab.github.com/research/github-actions-preventing-pwn-requests
- https://securitylab.github.com/research/github-actions-untrusted-input