VulnerabilityModified
CVE-2021-3639
This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted web application URL that redirects to an external and potentially malicious server.
MEDIUM 6.1EPSS 0.97%
Does this matter?
Lower severity and a low EPSS score (0.97%). Track it; it rarely justifies an emergency change on its own.
Description
A flaw was found in mod_auth_mellon where it does not sanitize logout URLs properly. This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted web application URL that redirects to an external and potentially malicious server. The highest threat from this liability is to confidentiality and integrity.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.97% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- uninett/mod auth mellon
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-3639Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1980648Issue Tracking, Third Party Advisory
- https://github.com/latchset/mod_auth_mellon/commit/42a11261b9dad2e48d70bdff7c53dd57a12db6f5Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3639Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1980648Issue Tracking, Third Party Advisory
- https://github.com/latchset/mod_auth_mellon/commit/42a11261b9dad2e48d70bdff7c53dd57a12db6f5Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.