user-readable api tokens in systemd units
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.9epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Affected products
jupyterhub · systemdspawnerReferences
https://github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015https://github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580https://github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6https://pypi.org/project/jupyterhub-systemdspawner/