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GHSA-m6q9-p373-g5q8 CVE-2024-1249

Keycloak's unvalidated cross-origin messages in checkLoginIframe leads to DDoS

High Maven
Severity
7.4 / 10
High · CVSS 3.1
Exploit chance (EPSS)
0.45%
Chance of exploitation in the next 30 days. Higher than 38.95% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-346 Origin Validation Error
Fix
22.0.10
Upgrade org.keycloak:keycloak-services to this version or later

Description

A potential security flaw in the "checkLoginIframe" which allows unvalidated cross-origin messages, enabling potential DDoS attacks. By exploiting this vulnerability, attackers could coordinate to send millions of requests in seconds using simple code, significantly impacting the application's availability without proper origin validation for incoming messages.

Acknowledgements

Special thanks to Adriano Márcio Monteiro from BRZTEC for reporting this issue and helping us improve our project.

Affected versions

Maven

PackageVulnerableFixed in
org.keycloak:keycloak-services
< 22.0.10
22.0.10
org.keycloak:keycloak-services
>= 23.0.0, < 24.0.3
24.0.3

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

org.keycloak:keycloak-services Maven → 22.0.10

maven
<dependency><groupId>org.keycloak</groupId><artifactId>keycloak-services</artifactId><version>22.0.10</version></dependency>
gradle
implementation("org.keycloak:keycloak-services:22.0.10")

Severity breakdown

CVSS 3.1 7.4

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

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

Weakness

CWE-346: Origin Validation Error

The product does not properly verify that the source of data or communication is valid.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-v3f7-2p4r-mwfw
Keycloak vulnerable to cross-site scripting (xss) via case-insensitive uri validation bypass
High Also affects org.keycloak:keycloak-services
GHSA-9jrw-8xf7-xqhq
Keycloak vulnerable to information disclosure through arbitrary filesystem path probing
Medium Also affects org.keycloak:keycloak-services
GHSA-w3p3-7cjg-vgfw
Keycloak allows unauthorized access to resources via uma permission ticket bypass
Medium Also affects org.keycloak:keycloak-services
GHSA-f5p5-6xmx-p252
Keycloak vulnerable to authorization bypass via incorrect uri comparison
High Also affects org.keycloak:keycloak-services
GHSA-r7rc-c989-86g6
Keycloak: Attacker can re-enable and take over disabled clients via registration access token
Medium Also affects org.keycloak:keycloak-services
GHSA-4gv3-mc9p-5wqc
Keycloak: Unauthenticated account takeover via reset-credentials flow bypass
Critical Also affects org.keycloak:keycloak-services
GHSA-6g26-7cx5-mrrg
Keycloak: Information disclosure due to user profile permission bypass
Low Also affects org.keycloak:keycloak-services
GHSA-cpf7-j4cf-vqx4
Keycloak has an Out-of-bounds Read
Medium Also affects org.keycloak:keycloak-services
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