GHSA-64X5-55RW-9974

Vulnerability from github – Published: 2023-08-29 23:34 – Updated: 2023-08-29 23:34
VLAI?
Summary
cross-site inclusion (XSSI) of files in jupyter-server
Details

Impact

Improper cross-site credential checks on /files/ URLs could allow exposure of certain file contents, or accessing files when opening untrusted files via "Open image in new tab".

Patches

Jupyter Server 2.7.2

Workarounds

Use lower performance --ContentsManager.files_handler_class=jupyter_server.files.handlers.FilesHandler, which implements the correct checks.

References

Upstream patch for CVE-2019-9644 was not applied completely, leaving part of the vulnerability open.

Vulnerability reported by Tim Coen via the bug bounty program sponsored by the European Commission and hosted on the Intigriti platform.

Severity ?
4.6 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jupyter-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-40170"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284",
      "CWE-306",
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-29T23:34:09Z",
    "nvd_published_at": "2023-08-28T21:15:07Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nImproper cross-site credential checks on `/files/` URLs could allow exposure of certain file contents, or accessing files when opening untrusted files via  \"Open image in new tab\".\n\n### Patches\n\nJupyter Server 2.7.2\n\n### Workarounds\n\nUse lower performance `--ContentsManager.files_handler_class=jupyter_server.files.handlers.FilesHandler`, which implements the correct checks.\n\n### References\n\nUpstream patch for CVE-2019-9644 was not applied completely, leaving part of the vulnerability open.\n\nVulnerability reported by Tim Coen via the [bug bounty program](https://app.intigriti.com/programs/jupyter/jupyter/detail) [sponsored by the European Commission](https://commission.europa.eu/news/european-commissions-open-source-programme-office-starts-bug-bounties-2022-01-19_en) and hosted on the [Intigriti platform](https://www.intigriti.com/).",
  "id": "GHSA-64x5-55rw-9974",
  "modified": "2023-08-29T23:34:09Z",
  "published": "2023-08-29T23:34:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jupyter-server/jupyter_server/security/advisories/GHSA-64x5-55rw-9974"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40170"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyter-server/jupyter_server/commit/87a4927272819f0b1cae1afa4c8c86ee2da002fd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jupyter-server/jupyter_server"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/jupyter-server/PYSEC-2023-157.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NRP7DNZYVOIA4ZB3U3ZWKTFZEPYWNGCQ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XDKQAWQN6SQTOVACZNXYKEHWQXGG4DOF"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "cross-site inclusion (XSSI) of files in jupyter-server"
}


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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



Detection rules are retrieved from Rulezet.