CVE-2021-3639

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.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.13%
Third-Party Advisory redhat.com Third-Party Advisory redhat.com Third-Party Advisory github.com
Affected: n/a mod_auth_mellon
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1980648 third party advisory issue tracking
https://access.redhat.com/security/cve/CVE-2021-3639 third party advisory patch
https://github.com/latchset/mod_auth_mellon/commit/42a11261b9dad2e48d70bdff7c53dd57a12db6f5 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-3639?
CVE-2021-3639 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3639?
To fix CVE-2021-3639, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3639 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3639 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3639?
CVE-2021-3639 affects n/a mod_auth_mellon.
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