Keycloak

This rule detects unusual child process executions originating from web server processes on Linux systems, which attackers may use to maintain persistence on a compromised system by exploiting web server vulnerabilities.

Identifies suspicious command executions via a web server on Linux systems, which may suggest a vulnerability and remote shell access.

CVE-2026-7571 describes a vulnerability in Keycloak where a low-privilege user can bypass security controls intended to disable the implicit flow in OpenID Connect (OIDC) clients by manipulating client data during session restart, potentially exposing access tokens.

A session fixation vulnerability in Keycloak's /login-actions/restart endpoint allows an unauthenticated attacker to hijack a user's session by crafting a malicious link that resets the authentication flow, potentially leading to account takeover.

A vulnerability in Keycloak's URL validation allows attackers to redirect users to unauthorized URLs by exploiting discrepancies in the handling of the user-info component within URLs, potentially leading to sensitive information exposure.

An authenticated remote attacker can exploit a vulnerability in Keycloak to bypass security measures.

An anonymous, remote attacker can exploit a vulnerability in Keycloak to send arbitrary emails, potentially leading to phishing or social engineering attacks.