Attack Chain

1. The attacker identifies a vulnerable Red Hat OpenShift Tempo instance exposed to the network.
2. The attacker crafts a malicious request targeting a specific vulnerability in OpenShift Tempo’s Apache Thrift interface.
3. The vulnerable component processes the crafted request without proper validation.
4. Depending on the vulnerability, the attacker may bypass authentication or authorization mechanisms.
5. The attacker gains unauthorized access to sensitive information stored within OpenShift Tempo.
6. Alternatively, the attacker may manipulate data within OpenShift Tempo, leading to data corruption or service disruption.
7. Or, the attacker sends a high volume of requests designed to exhaust server resources.
8. The OpenShift Tempo service becomes unavailable, resulting in a denial-of-service condition.

Impact

Successful exploitation of these vulnerabilities can have significant consequences for organizations using Red Hat OpenShift Tempo. Potential impacts include unauthorized access to sensitive data, such as user credentials or proprietary information, data manipulation leading to incorrect or corrupted data, and service disruptions due to denial-of-service attacks. The number of affected systems and the scope of the impact will depend on the specific deployment and configuration of OpenShift Tempo.

Recommendation

• Deploy the Sigma rule to detect potential exploitation attempts against OpenShift Tempo by monitoring for suspicious network activity and unusual requests targeting the service.
• Monitor network traffic for unusual patterns or excessive requests targeting OpenShift Tempo, which may indicate a denial-of-service attempt.