December 2, 2019
Redhat KeyCloak is prone to an information-disclosure vulnerability. Successful exploits may allow the attacker to obtain sensitive information or to perform unauthorized actions. This may lead to other attacks.
- Redhat Single Sign-On 7.3 for RHEL 6
- Redhat Single Sign-On 7.3 for RHEL 7
- Redhat Single Sign-On 7.3 for RHEL 8
- Redhat keycloak
Block external access at the network boundary, unless external parties require service.
If global access isn't needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of exploitation.
Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of a successful attack, run the browser with the minimal amount of privileges required for functionality.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to detect and block attacks and anomalous activity such as requests containing suspicious URI sequences. Since the webserver may log such requests, review its logs regularly.
Do not follow links provided by unknown or untrusted sources.
To reduce the likelihood of successful exploits, never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.
Updates are available. Please see the references or vendor advisory for more information.
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