User redirection via unvalidated destination URL
Published Mar 23, 2021 · Updated Aug 3, 2024
Open redirect in OMERO.web before 5.9.0 allows remote authenticated users to redirect browsers to untrusted sites after login or a group switch. The WebclientLoginView.handle_logged_in and change_active_group paths passed the request-controlled url value directly to HttpResponseRedirect without checking the destination host. Exploitation requires a valid account and user interaction; the bounded result is navigation to an attacker-chosen site, enabling phishing or credential capture by that external site.
Summary
What happened
Open redirect in OMERO.web before 5.9.0 allows remote authenticated users to redirect browsers to untrusted sites after login or a group switch. The WebclientLoginView.handle_logged_in and change_active_group paths passed the request-controlled url value directly to HttpResponseRedirect without checking the destination host. Exploitation requires a valid account and user interaction; the bounded result is navigation to an attacker-chosen site, enabling phishing or credential capture by that external site.
The record
- CVE
- CVE-2021-21377
- Published
- Mar 23, 2021
- Updated
- Aug 3, 2024
- Vendor
- Open Microscopy Environment
- Product
- OMERO.web
- Classifications
- CWE-601, T1566.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 23, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 5.9.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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