CVE-2021-21377

OMERO.web is open source Django-based software for managing microscopy imaging. OMERO.web before version 5.9.0 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.

CVSS v3.0 5.4 MEDIUM
CVSS v2.0 4.9 MEDIUM

5.4^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:N

Exploitability : 6.8 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/ome/omero-web/blob/master/CHANGELOG.md#590-march-2021	Release Notes Third Party Advisory
https://pypi.org/project/omero-web/	Third Party Advisory
https://github.com/ome/omero-web/commit/952f8e5d28532fbb14fb665982211329d137908c	Patch Third Party Advisory
https://www.openmicroscopy.org/security/advisories/2021-SV2/	Vendor Advisory
https://github.com/ome/omero-web/security/advisories/GHSA-g4rf-pc26-6hmr	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:openmicroscopy:omero.web:*:*:*:*:*:*:*:*

Information

Published : 2021-03-23 09:15

Updated : 2021-03-26 19:20

NVD link : CVE-2021-21377

Mitre link : CVE-2021-21377

JSON object : View

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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Products Affected

openmicroscopy

omero.web

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