CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
AI Score
Confidence
Low
EPSS
Percentile
16.3%
An open redirect vulnerability was found in Keycloak. A specially crafted URL can be constructed where the referrer
and referrer_uri
parameters are made to trick a user to visit a malicious webpage. A trusted URL can trick users and automation into believing that the URL is safe, when, in fact, it redirects to a malicious server. This issue can result in a victim inadvertently trusting the destination of the redirect, potentially leading to a successful phishing attack or other types of attacks.
Once a crafted URL is made, it can be sent to a Keycloak admin via email for example. This will trigger this vulnerability when the user visits the page and clicks the link. A malicious actor can use this to target users they know are Keycloak admins for further attacks. It may also be possible to bypass other domain-related security checks, such as supplying this as a OAuth redirect uri. The malicious actor can further obfuscate the redirect_uri
using URL encoding, to hide the text of the actual malicious website domain.
Vendor | Product | Version | CPE |
---|---|---|---|
org.keycloak\ | keycloak | core | cpe:2.3:a:org.keycloak\:keycloak:core:*:*:*:*:*:*:*:* |