SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2024-47179

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.

HIGH 8.8EPSS 0.73%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.73% probability · 52th percentile
CISA KEV
Not listed
Weakness
CWE-20
Source
security-advisories@github.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.