GitHub Advisory DatabaseGHSA-CG54-GPGR-4RM6user-readable api tokens in systemd units for JupyterHub
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
EPSS
Percentile
15.5%
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]
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| jupyterhub | systemdspawner | * | cpe:2.3:a:jupyterhub:systemdspawner:*:*:*:*:*:*:*:* |
References
github.com/advisories/GHSA-cg54-gpgr-4rm6
github.com/jupyterhub/systemdspawner/blob/master/CHANGELOG.md#v015
github.com/jupyterhub/systemdspawner/commit/a4d08fd2ade1cfd0ef2c29dc221e649345f23580
github.com/jupyterhub/systemdspawner/security/advisories/GHSA-cg54-gpgr-4rm6
nvd.nist.gov/vuln/detail/CVE-2020-26261
pypi.org/project/jupyterhub-systemdspawner/
Related
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
EPSS
Percentile
15.5%