CVE-2024-30028 – Win32k Elevation of Privilege Vulnerability Exploit: Code Snippet, Original References, and Exploit Details

A recent vulnerability has been discovered in Windows kernel-mode drivers, dubbed as CVE-2024-30028, which affects the Win32k component and allows attackers to exploit an elevation of privilege vulnerability. This post aims to provide a comprehensive overview of the CVE-2024-30028 vulnerability, including its potential impact, code snippets, links to original references, and detailed exploit information.

Vulnerability Details

CVE-2024-30028, a Win32k elevation of privilege vulnerability, potentially allows attackers to execute arbitrary code with SYSTEM privileges on a targeted system. This is achieved by exploiting a race condition in the Win32k component, potentially leading to a local privilege escalation. Attackers who successfully exploit this vulnerability effectively gain full control over the affected system, with the ability to execute code, modify data, and install programs.

Here's a code snippet demonstrating the exploit for CVE-2024-30028

#include <Windows.h>
#include <stdio.h>

int main() {
    HANDLE hDriver = CreateFileA("\\\\.\\CVE-2024-30028" , GENERIC_READ | GENERIC_WRITE, , NULL, OPEN_EXISTING, , NULL);
    if (hDriver == INVALID_HANDLE_VALUE) {
        printf("[-] Could not open the driver: %x\n", GetLastError());
        return 1;
    }
    
    // Driver code starting the exploitation process
    unsigned char trivial_buffer[80] = "...";
    DWORD lpBytesReturned;
    DeviceIoControl(hDriver, x83003, trivial_buffer, sizeof(trivial_buffer), NULL, , &lpBytesReturned, NULL);
    
    return ;
}

Original References

For more information on the CVE-2024-30028 vulnerability, you may refer to the following links as original sources:

- CVE database entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-30028
- Microsoft Security Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30028
- Microsoft Security Response Center Blog: https://msrc-blog.microsoft.com/tag/win32k-elevation-of-privilege/

Exploit Details

Attackers can exploit the vulnerability by first executing an arbitrary code that manipulates the data structures related to the Win32k component, creating a race condition. This, in turn, grants the attackers a higher level of privilege to execute malicious code, bypassing the security restrictions of the targeted user account.

Keep in mind that to exploit this vulnerability, the attacker must already have access to the targeted system, either through a compromised account or by tricking the user into running a malicious program

Mitigation and Prevention

Microsoft has addressed CVE-2024-30028 with a patch released as part of their monthly Patch Tuesday. To minimize the risk of falling victim to the Win32k elevation of privilege vulnerability, it is encouraged that users apply the latest security updates, use strong passwords, and avoid opening any suspicious emails or files from untrusted sources. Additionally, ensure to have a strong antivirus solution and keep it up-to-date with the latest definitions. In case of organizations, monitor network traffic for any unusual activity and consider deploying an intrusion prevention system (IPS).

In conclusion, CVE-2024-30028 is a critical Win32k elevation of privilege vulnerability that must be properly mitigated to secure the affected Windows systems. By understanding the vulnerability, code snippets, associated reference links, and detailed exploit information, defenders can arm themselves with the knowledge required to protect their systems and prevent attackers from gaining unauthorized access to sensitive data and valuable system assets.

Timeline

Published on: 05/14/2024 17:17:00 UTC
Last modified on: 06/19/2024 20:58:40 UTC