Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Uninett | Mod Auth Mellon | < 0.18.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2021-3639PatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1980648Issue TrackingThird Party Advisory
- https://github.com/latchset/mod_auth_mellon/commit/42a11261b9dad2e48d70bdff7c53dPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3639PatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1980648Issue TrackingThird Party Advisory
- https://github.com/latchset/mod_auth_mellon/commit/42a11261b9dad2e48d70bdff7c53dPatchThird Party Advisory
FAQ
What is CVE-2021-3639?
CVE-2021-3639 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 we...
How severe is CVE-2021-3639?
CVE-2021-3639 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3639?
Check the references section above for vendor advisories and patch information. Affected products include: Uninett Mod Auth Mellon.