CVE-2021-39159

published 2021-08-25

CVE-2021-39159: BinderHub is a kubernetes-based cloud service that allows users to share reproducible interactive computing environments from code repositories. In affected…

Priority P2 64 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

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

5 ranges

Vendor	Product	Version range	Fixed in
jupyter	binderhub	< 0.2.0-n653	0.2.0-n653
jupyterhub	binderhub	< 0.2.0-n653	0.2.0-n653
jupyterhub	binderhub	>= 0 < 0.2.0	0.2.0
jupyterhub	binderhub	>= 0 < 195caac172690456dcdc8cc7a6ca50e05abf8182.patch	195caac172690456dcdc8cc7a6ca50e05abf8182.patch
jupyterhub	binderhub	>= 0 < 0.2.0-n653	0.2.0-n653

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

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CWE-94 CWE-78