CVE-2021-3754 — MEDIUM (5.3)

Vulnerability Description

A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.

CVSS Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Redhat	Keycloak	-
Redhat	Single Sign-On	7.0

Related Weaknesses (CWE)

CWE-20

References

https://access.redhat.com/security/cve/CVE-2021-3754Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1999196Issue TrackingVendor Advisory
https://access.redhat.com/security/cve/CVE-2021-3754Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1999196Issue TrackingVendor Advisory

FAQ

What is CVE-2021-3754?

CVE-2021-3754 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in cas...

How severe is CVE-2021-3754?

CVE-2021-3754 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3754?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Keycloak, Redhat Single Sign-On.