Hey, folks! Today, we'll dive into CVE-2022-33639 – a new vulnerability discovered in Microsoft Edge (based on Chromium). This Elevation of Privilege vulnerability is unique from CVE-2022-30192 and CVE-2022-33638, so let's take a closer look at what makes this one different. In this blog post, we'll describe the exploit details, provide some code snippets, and offer links to the original references to help you better understand the problem.

Vulnerability Details

CVE-2022-33639 refers to an Elevation of Privilege vulnerability in the Chromium-based Microsoft Edge web browser. This vulnerability allows an attacker with access to a user's system to escalate their rights and gain additional control of the device, potentially leading to unauthorized access, data theft, or disruption of system functionality.

Exploit Details

The exact exploit details for CVE-2022-33639 are not entirely clear yet, but we do know that it involves the abuse of a specific component in Microsoft Edge. In certain scenarios, an attacker with local access to the system can exploit this vulnerability by running a crafted application or script designed to interact with the vulnerable component in the browser. This, in turn, can lead to an escalation of privileges, giving the attacker more control over the system.

Code Snippet

While a fully working exploit is not yet publicly available, here's a simple example of how an attacker might start crafting an application or script to interact with the vulnerable component in Microsoft Edge:

import os
import sys
import subprocess

# Replace VULNERABLE_COMPONENT_PATH with the actual path of the vulnerable component
VULNERABLE_COMPONENT_PATH = "C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\vulnerable_component.dll"

def exploit():
    # Crafted application or script code that interacts with the vulnerable component
    exploit_code = "exploit_code_here"

    # Invoke the vulnerable component in Microsoft Edge with the crafted exploit code
    subprocess.call("MicrosoftEdge.exe {} {}".format(VULNERABLE_COMPONENT_PATH, exploit_code))

if __name__ == "__main__":
    exploit()

Please note that the above code snippet is only an illustrative example and not an actual exploit. It is essential to follow ethical practices and only use this information for educational purposes.

Original References

1. Official Chromium Git Repository
2. Microsoft Security Advisory for CVE-2022-33639

Mitigations and Recommendations

Microsoft has already released a security update to address CVE-2022-33639. Make sure you have installed the latest updates for your Microsoft Edge browser. You can do this by navigating to edge://settings/help and following any update prompts. Considering the potential impact of this vulnerability, it is vital to ensure your system and browser are up-to-date to minimize the risk of exploitation.

Closing Thoughts

CVE-2022-33639 highlights the importance of staying informed about emerging security vulnerabilities, especially those affecting widely used software like web browsers. Keep your systems updated, and stay tuned for more information on the exploitation of this vulnerability as it becomes available.

Timeline

Published on: 06/29/2022 17:15:00 UTC
Last modified on: 08/15/2022 11:21:00 UTC