GHSA-G4RF-PC26-6HMR

Vulnerability from github – Published: 2021-03-23 15:26 – Updated: 2024-10-08 12:43
VLAI?
Summary
OMERO webclient does not validate URL redirects on login or switching group.
Details

Background

OMERO.web supports redirection to a given URL after performing login or switching the group context. These URLs are not validated, allowing redirection to untrusted sites. OMERO.web 5.9.0 adds URL validation before redirecting. External URLs are not considered valid, unless specified in the omero.web.redirect_allowed_hosts setting.

Impact

OMERO.web before 5.9.0

Patches

5.9.0

Workarounds

No workaround

References

For more information

If you have any questions or comments about this advisory: * Open an issue in omero-web * Email us at security

Severity ?
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
5.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "omero-web"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.9.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21377"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-23T15:25:55Z",
    "nvd_published_at": "2021-03-23T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Background\nOMERO.web supports redirection to a given URL after performing login or switching the group context. These URLs are not validated, allowing redirection to untrusted sites. OMERO.web 5.9.0 adds URL validation before redirecting. External URLs are not considered valid, unless specified in the ``omero.web.redirect_allowed_hosts`` setting.\n\n### Impact\nOMERO.web before 5.9.0\n\n### Patches\n5.9.0\n\n### Workarounds\nNo workaround\n\n### References\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [omero-web](https://github.com/ome/omero-web)\n* Email us at [security](mailto:security@openmicroscopy.org.uk)",
  "id": "GHSA-g4rf-pc26-6hmr",
  "modified": "2024-10-08T12:43:19Z",
  "published": "2021-03-23T15:26:49Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ome/omero-web/security/advisories/GHSA-g4rf-pc26-6hmr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21377"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ome/omero-web/commit/952f8e5d28532fbb14fb665982211329d137908c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ome/omero-web"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ome/omero-web/blob/master/CHANGELOG.md#590-march-2021"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/omero-web/PYSEC-2021-32.yaml"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/omero-web"
    },
    {
      "type": "WEB",
      "url": "https://www.openmicroscopy.org/security/advisories/2021-SV2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OMERO webclient does not validate URL redirects on login or switching group."
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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