user-readable api tokens in systemd units (jupyterhub systemdspawner)

CVE-2020-26261
HIGH 7.9

At a glance

Source
NVD
EPSS
EPSS 0.48 % · percentile 41 ()
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Modified

Description

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

Weaknesses (CWE)

  • CWE-668 — Exposure of Resource to Wrong Sphere

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.9CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:NGitHub_M
CVSS 3.1HIGH 7.9CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:NNVD · security-advisories@github.com (Secondary)
CVSS 3.1HIGH 7.9CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:NNVD · nvd@nist.gov (Primary)
CVSS 2.0LOW 3.3AV:L/AC:M/Au:N/C:P/I:P/A:NNVD · nvd@nist.gov (Primary)

Advisories

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
jupyterhub · systemdspawneraffected < 0.15

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD