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Exposure of Resource to Wrong Sphere

CVE-2020-26261

Severity High
Score 7.9/10

Summary

jupyterhub-systemdspawner enables JupyterHub to spawn single-user notebook servers using systemd. In jupyterhub-systemdspawner before version 0.15 user API tokens issued to single-user servers are specified in the environment of systemd units. These tokens are incorrectly accessible to all users. In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default. This is patched in jupyterhub-systemdspawner v0.15

  • LOW
  • LOCAL
  • HIGH
  • CHANGED
  • REQUIRED
  • LOW
  • HIGH
  • NONE

CWE-668 - Exposure of Resource to Wrong Sphere

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Advisory Timeline

  • Published