CVE-2023-22049: An Insight Into The Vulnerability in Oracle Java SE, Oracle GraalVM Enterprise Edition, and Oracle GraalVM for JDK Components

A vulnerability designated as CVE-2023-22049 has been identified in the following Oracle products: Oracle Java SE, Oracle GraalVM Enterprise Edition, and Oracle GraalVM for JDK. The vulnerable component in these products is Libraries. Affected versions include Oracle Java SE 8u371, 8u371-perf, 11..19, 17..7, 20..1; Oracle GraalVM Enterprise Edition 20.3.10, 21.3.6, 22.3.2; and Oracle GraalVM for JDK 17..7 and 20..1.

The exploit for this vulnerability is difficult to execute and requires network access via multiple protocols. An unauthenticated attacker can compromise the affected Oracle products and gain unauthorized update, insert, or delete access to some of the data in these products. This vulnerability can be exploited using APIs in the specified component, for example, through a web service that supplies data to the APIs. It also applies to Java deployments in clients running sandboxed Java Web Start applications or sandboxed Java applets that load and run untrusted code from the internet and rely on the Java sandbox for security.

CVSS 3.1 Base Score of this vulnerability is 3.7, indicating 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:L/A:N).

In this post, we will break down the details of this vulnerability, including sample code snippets and original references.

Vulnerable Code Snippet

// Sample vulnerable code in Java
public class VulnerableComponent {
    public void loadData(APIInterface api, String dataUrl) {
        // ...
        InputStream inputStream = api.getData(dataUrl);
        // ...
        processData(inputStream);
        // ...
    }

    private void processData(InputStream inputStream) {
        // ...
        // Vulnerable code section (e.g., missing proper input validation or improper data handling)
        // ...
    }
}

Exploit Details

An attacker can exploit this vulnerability by crafting malicious input data and injecting it into the affected Java products through APIs. This data, when processed by the vulnerable method, can lead to unauthorized update, insert, or delete access on some of the product's accessible data.

The exploit requires network access and knowledge of multiple protocols, making it difficult to execute. However, successful exploitation can lead to critical data being compromised.

Mitigation and Original References

Oracle has published patches for the vulnerability in the specified versions of the affected products. Users of the affected Oracle Java SE, Oracle GraalVM Enterprise Edition, and Oracle GraalVM for JDK products are encouraged to apply the patches as soon as possible.

National Vulnerability Database (NVD) - [Link to NVD's CVE-2023-22049 page]

Keep your Java products and deployments up to date and ensure proper security measures are in place to prevent successful exploitation of this vulnerability.

Timeline

Published on: 07/18/2023 21:15:00 UTC
Last modified on: 08/17/2023 19:15:00 UTC