Keycloak redirect_uri Validation Bypass Enables Token Theft
CVE-2024-2419 Published on April 17, 2024
Keycloak: path traversal in the redirect validation
A flaw was found in Keycloak's redirect_uri validation logic. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to the theft of an access token, making it possible for the attacker to impersonate other users. It is very similar to CVE-2023-6291.
Vulnerability Analysis
CVE-2024-2419 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be low. considered to have a small impact on confidentiality and integrity and availability.
Timeline
Reported to Red Hat.
Made public. 34 days later.
Weakness Type
What is an Open Redirect Vulnerability?
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance.
CVE-2024-2419 has been classified to as an Open Redirect vulnerability or weakness.
Products Associated with CVE-2024-2419
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Vulnerable Packages
The following package name and versions may be associated with CVE-2024-2419
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | org.keycloak:keycloak-services | < 22.0.10 | 22.0.10 |
| maven | org.keycloak:keycloak-services | >= 23.0.0, < 24.0.3 | 24.0.3 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.