Vulnerability · Published Aug 25, 2021 · Assigned by GitHub_M
CVE-2021-39159Remote code execution in Binderhub
Critical 9.6
In plain English
A critical-severity code injection in binderhub from jupyterhub. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
BinderHub is a kubernetes-based cloud service that allows users to share reproducible interactive computing environments from code repositories. In affected versions a remote code execution vulnerability has been identified in BinderHub, where providing BinderHub with maliciously crafted input could execute code in the BinderHub context, with the potential to egress credentials of the BinderHub deployment, including JupyterHub API tokens, kubernetes service accounts, and docker registry credentials. This may provide the ability to manipulate images and other user created pods in the deployment, with the potential to escalate to the host depending on the underlying kubernetes configuration. Users are advised to update to version 0.2.0-n653. If users are unable to update they may disable the git repo provider by specifying the `BinderHub.repo_providers` as a workaround.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | binderhub | 0.2.0 | GHSA-9jjr-qqfp-ppwx |
| PyPI | binderhub | 0.2.0-n653 | PYSEC-2021-371 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| jupyterhub | binderhub | < 0.2.0-n653 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H