CVE-2021-3639

CVSS V2 None CVSS V3 Medium 6.1

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.

Overview

CVE ID
CVE-2021-3639

Assigner
secalert@redhat.com

Vulnerability Status
Modified

Published Version
2022-08-22T15:15:13

Last Modified Date
2023-02-12T23:41:41

Weakness Enumerations

CWE	URL
CWE-601	http://cwe.mitre.org/data/definitions/601.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:uninett:mod_auth_mellon::::::::	1	OR		0.18.0

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
REQUIRED

Scope
CHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
6.1

Base Severity
MEDIUM

Exploitability Score
2.8

Impact Score
2.7

References

Reference URL	Reference Tags
https://access.redhat.com/errata/RHSA-2022:1934
https://access.redhat.com/security/cve/CVE-2021-3639	Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1980648	Issue Tracking Third Party Advisory
https://github.com/latchset/mod_auth_mellon/commit/42a11261b9dad2e48d70bdff7c53dd57a12db6f5	Patch Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-3639
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3639

History

Created	Old Value	New Value	Data Type	Notes
2022-08-22 16:00:11				Added to TrackCVE
2023-02-02 23:14:05		2023-02-02T21:21:17	CVE Modified Date	updated
2023-02-02 23:14:05	Analyzed	Modified	Vulnerability Status	updated
2023-02-02 23:14:07			References	updated
2023-02-13 00:14:48		2023-02-12T23:41:41	CVE Modified Date	updated