ome/omero-web · Security
OMERO webclient does not validate URL redirects on login or switching group.
- GHSA ID
- GHSA-g4rf-pc26-6hmr
- CVE ID
- CVE-2021-21377
- Severity
- medium
- Published
- Updated
- CVSS
- 4.8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
- CVSS v3
- 4.8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
- CVSS v4
- 5.9 · 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
Description
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:
CWEs
- CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
References
- https://github.com/ome/omero-web/security/advisories/GHSA-g4rf-pc26-6hmr ↗
- https://github.com/ome/omero-web/commit/952f8e5d28532fbb14fb665982211329d137908c ↗
- https://github.com/ome/omero-web/blob/master/CHANGELOG.md#590-march-2021 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2021-21377 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/omero-web/PYSEC-2021-32.yaml ↗
- https://pypi.org/project/omero-web ↗
- https://www.openmicroscopy.org/security/advisories/2021-SV2 ↗
- https://github.com/advisories/GHSA-g4rf-pc26-6hmr ↗