CVE-2024-20919: Critical Vulnerability in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition – Integrity Impacts and Data Manipulation Risks

A critical vulnerability (CVE-2024-20919) has been discovered in several supported versions of Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition products, specifically in the Hotspot component. This vulnerability can lead to unauthorized creation, deletion, or modification access to critical data or all accessible data within the affected products. Exploiting this vulnerability requires an unauthenticated attacker with network access via multiple protocols, and it is considered difficult to exploit.

Exploit Details

This vulnerability can only be exploited by supplying data to APIs in the specified Hotspot component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. The complexity of exploiting this vulnerability is high, as it requires an attacker to successfully manipulate data within the affected products' components.

The potential impact of a successful attack includes unauthorized data manipulation, data loss, or corruption of critical information within the products, leading to potential disruption of business operations and service degradation.

CVSS 3.1 Base Score and Vector

The CVE-2024-20919 vulnerability is assigned a CVSS 3.1 Base Score of 5.9, indicating considerable risk due to its potential integrity impacts. The CVSS Vector for this vulnerability is (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

Code Snippet

While the specific code snippet that exploits this vulnerability is not disclosed to prevent adversarial exploitation, an example of a potentially vulnerable API call within the Hotspot component might look similar to the following:

public class VulnerableAPI {
    public static void processData(DataObject data) {
        // vulnerable code here
    }
}

An attacker could potentially exploit this vulnerability through a malicious data payload supplied to the vulnerable API, leading to unauthorized access to critical data or modification of accessible data within the affected product components.

Original References

1. Oracle Critical Patch Update Advisory – October 2024 - This advisory contains important information about affected product versions, as well as recommended steps for addressing the identified vulnerabilities.
2. CVE-2024-20919 - Official CVE record which includes the details regarding the vulnerability, its impact, and its assigned CVSS scores and vectors.
3. Oracle Java SE Hotspot Documentation - Official documentation on Oracle Java SE Hotspot component, providing users with essential information on its features, functions, and configuration.

In Conclusion

Organizations utilizing the affected Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition products should review the relevant references and apply necessary patches or countermeasures to mitigate the risks associated with this vulnerability. Additionally, developers should remain vigilant when designing and integrating components, ensuring that adequate safety and validation measures are in place to prevent unauthorized data access or manipulation through API endpoints or other potential attack vectors.

Timeline

Published on: 02/17/2024 02:15:46 UTC
Last modified on: 02/20/2024 19:51:05 UTC