2024-11-25
Keycloak versions 26 and earlier are vulnerable to a critical denial-of-service (DoS) attack due to improper handling of proxy headers. When configured to accept incoming proxy headers, Keycloak may accept non-IP values, leading to costly DNS resolution operations. An attacker can exploit this vulnerability by sending malicious requests to a vulnerable Keycloak instance, potentially causing a denial of service.
Form:
Platform: Keycloak
Version: 26 and earlier
Vulnerability: Denial-of-Service (DoS)
Severity: Critical
Date: [Date of vulnerability disclosure]
What Undercode Says:
This vulnerability highlights a critical security flaw in older Keycloak versions. Attackers can exploit this issue to disrupt Keycloak services by overwhelming the system with DNS resolution requests. It’s imperative for organizations using vulnerable Keycloak versions to prioritize patching to the latest version to mitigate this risk. This vulnerability underscores the importance of keeping software up-to-date and configuring security settings carefully.
References:
Reported By: Github.com
Undercode AI: https://ai.undercodetesting.com
Image Source:
OpenAI: https://openai.com
Undercode AI DI v2: https://ai.undercode.help