CVE-2021-3424
keycloak: Internationalized domain name (IDN) homograph attack to impersonate users
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.
Se ha encontrado un fallo en keycloak, tal y como es enviado en Red Hat Single Sign-On versión 7.4, en el que son posibles los ataques de homografía IDN. Un usuario malicioso puede registrarse con un nombre ya registrado y engañar al administrador para que le conceda privilegios adicionales
A flaw was found in keycloak, where IDN homograph attacks are possible. This flaw allows a malicious user to register a name that already exists and then tricking an admin to grant extra privileges. The highest threat from this vulnerability is to integrity.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-03-08 CVE Reserved
- 2021-05-20 CVE Published
- 2024-02-15 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1933320 | 2021-05-20 | |
| https://access.redhat.com/security/cve/CVE-2021-3424 | 2021-05-20 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Redhat Search vendor "Redhat" | Single Sign-on Search vendor "Redhat" for product "Single Sign-on" | 7.4 Search vendor "Redhat" for product "Single Sign-on" and version "7.4" | - |
Affected
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