Vulnerability · Published Jul 17, 2020 · Assigned by GitHub_M

CVE-2020-15110Possible pod name collisions in jupyterhub-kubespawner

Medium 6.8

In plain English

A medium-severity incorrect authorization in kubespawner from jupyterhub. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)1.1%top 33.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In jupyterhub-kubespawner before 0.12, certain usernames will be able to craft particular server names which will grant them access to the default server of other users who have matching usernames. This has been fixed in 0.12.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIjupyterhub-kubespawner0.12.0GHSA-v7m9-9497-p9gr
PyPIjupyterhub-kubespawner0.12.0PYSEC-2020-51

Affected products (as reported)

VendorProductVersions
jupyterhub kubespawner < 0.12

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

References