Attack Chain

1. An attacker gains network access to a system running a vulnerable version of Red Hat Enterprise Linux with Quarkus.
2. The attacker identifies an exploitable vulnerability within the Quarkus application through reconnaissance or public knowledge.
3. The attacker crafts a malicious request targeting the identified vulnerability (e.g., a request designed to trigger a denial-of-service condition).
4. The attacker sends the crafted request to the vulnerable Quarkus application.
5. If successful, the exploit leads to a denial of service, rendering the application or system unavailable.
6. Alternatively, the attacker may successfully exploit a vulnerability leading to sensitive information disclosure, such as configuration files or database credentials.
7. The attacker leverages disclosed information to further compromise the system or connected resources.
8. As another potential outcome, the attacker may successfully manipulate data by exploiting a vulnerability.

Impact

Successful exploitation of these vulnerabilities can lead to several adverse effects. A denial-of-service attack can disrupt critical services and impact business operations. Sensitive information disclosure can result in data breaches and compromise confidential data. Data manipulation can lead to data corruption and inaccurate information. The scope of impact depends on the specific vulnerability exploited and the context within the affected system, however, a full system compromise is possible.

Recommendation

• Apply the latest security patches provided by Red Hat for both Quarkus and Red Hat Enterprise Linux to remediate the reported vulnerabilities.
• Monitor network traffic for suspicious activity targeting Quarkus applications using network connection logs.
• Implement the Sigma rules in this brief to your SIEM and tune for your environment.