GHSA-CW7P-Q79F-M2V7
Vulnerability from github – Published: 2021-11-08 18:02 – Updated: 2024-09-24 20:50
VLAI?
Summary
incomplete JupyterHub logout with simultaneous JupyterLab sessions
Details
Impact
Users of JupyterLab with JupyterHub who have multiple JupyterLab tabs open in the same browser session, may see incomplete logout from the single-user server, as fresh credentials (for the single-user server only, not the Hub) reinstated after logout, if another active JupyterLab session is open while the logout takes place.
Patches
Upgrade to JupyterHub 1.5. For distributed deployments, it is jupyterhub in the user environment that needs patching. There are no patches necessary in the Hub environment.
Workarounds
The only workaround is to make sure that only one JupyterLab tab is open when you log out.
Severity ?
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "jupyterhub"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.5.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-41247"
],
"database_specific": {
"cwe_ids": [
"CWE-613"
],
"github_reviewed": true,
"github_reviewed_at": "2021-11-04T17:49:19Z",
"nvd_published_at": "2021-11-04T18:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\n\nUsers of JupyterLab with JupyterHub who have multiple JupyterLab tabs open in the same browser session, may see incomplete logout from the single-user server, as fresh credentials (for the single-user server only, not the Hub) reinstated after logout, if another active JupyterLab session is open while the logout takes place.\n\n### Patches\n\nUpgrade to JupyterHub 1.5. For distributed deployments, it is jupyterhub in the _user_ environment that needs patching. There are no patches necessary in the Hub environment.\n\n### Workarounds\n\nThe only workaround is to make sure that only one JupyterLab tab is open when you log out.",
"id": "GHSA-cw7p-q79f-m2v7",
"modified": "2024-09-24T20:50:54Z",
"published": "2021-11-08T18:02:37Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41247"
},
{
"type": "WEB",
"url": "https://github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27"
},
{
"type": "PACKAGE",
"url": "https://github.com/jupyterhub/jupyterhub"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2021-386.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "incomplete JupyterHub logout with simultaneous JupyterLab sessions"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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