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woodpecker-ci/woodpecker · Security

Woodpecker's custom environment variables allow to alter execution flow of plugins

GHSA ID
GHSA-3wf2-2pq4-4rvc
CVE ID
CVE-2024-41122
Severity
medium
Published
Updated
CVSS
7.5 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3
7.5 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4
6 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Description

Impact

The server allow to create any user who can trigger a pipeline run malicious workflows:

  • Those workflows can either lead to a host takeover that runs the agent executing the workflow.
  • Or allow to extract the secrets who would be normally provided to the plugins who's entrypoint are overwritten.

Patches

https://github.com/woodpecker-ci/woodpecker/pull/3909 https://github.com/woodpecker-ci/woodpecker/pull/3934

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading? Enable the "gated" repo feature and review each change upfront of running

References

Credits

  • Daniel Kilimnik @D_K_Dev (Neodyme AG)
  • Felipe Custodio Romero @localo (Neodyme AG)

CWEs

  • CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

References

Open GitHub