jupyterhub/systemdspawner · Security
user-readable api tokens in systemd units for JupyterHub
- GHSA ID
- GHSA-cg54-gpgr-4rm6
- CVE ID
- CVE-2020-26261
- Severity
- high
- Published
- Updated
- CVSS
- 7.9 · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- CVSS v3
- 7.9 · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- CVSS v4
- 7.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U
Description
Impact
user API tokens issued to single-user servers are specified in the environment of systemd units, which are accessible to all users.
In particular, the-littlest-jupyterhub is affected, which uses systemdspawner by default.
Patches
Patched in jupyterhub-systemdspawner v0.15
Workarounds
No workaround other than upgrading systemdspawner to 0.15
For more information
If you have any questions or comments about this advisory:
- Open a thread in the Jupyter forum
- Email us at [email protected]
CWEs
- CWE-668 · Exposure of Resource to Wrong Sphere
References
- https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6 ↗
- https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580 ↗
- https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2020-26261 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub-systemdspawner/PYSEC-2020-52.yaml ↗
- https://pypi.org/project/jupyterhub-systemdspawner ↗
- https://github.com/advisories/GHSA-cg54-gpgr-4rm6 ↗