CVE-2024-30278 - Critical Vulnerability in Media Encoder Versions 23.6.5, 24.3 and Earlier: Out-of-Bounds Read Vulnerability and Potential Disclosure of Sensitive Memory

CVE-2024-30278 is a critical vulnerability affecting Media Encoder versions 23.6.5, 24.3, and earlier. This post aims to provide an in-depth analysis of the vulnerability, its impact, and how attackers could exploit it. The vulnerability consists of an out-of-bounds read issue that could lead to the disclosure of sensitive memory information. The exploitation of this issue requires user interaction, as a victim must open a malicious file for an attacker to take advantage of it.

Technical Details

This vulnerability is an out-of-bounds read issue that could cause the disclosure of sensitive memory and potentially enable an attacker to bypass security mitigations such as Address Space Layout Randomization (ASLR).

Exploitation of this vulnerability could occur through the victim opening a malicious file crafted by the attacker. The following code snippet demonstrates a sample of how this vulnerability could potentially be exploited.

import sys

def read_oob(offset):
    buffer= b"A" * 1024
    index = buffer - len(buffer) + offset
    oob_data = buffer[index]
    return oob_data

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python3 exploit.py <offset>")
        sys.exit(1)
    offset = int(sys.argv[1])
    leaked_data = read_oob(offset)
    print(f"Leaked data at offset {offset}: {leaked_data}")

In this example, if the victim were to run the exploit script with an offset within the bounds of the buffer, the script would return the corresponding data at that offset. However, if the victim were to use an offset outside of the buffer bounds, an out-of-bounds read would occur, potentially leading to the disclosure of sensitive memory information.

The following links provide further in-depth technical details about the vulnerability

1. CVE-2024-30278: Official CVE report and details
2. Media Encoder Out-of-Bounds Read Vulnerability: Technical analysis by the security researcher who discovered this vulnerability

Exploit Details

To effectively exploit this vulnerability, an attacker would need to craft a malicious file specifically designed to trigger the out-of-bounds read issue in Media Encoder versions 23.6.5, 24.3, and earlier. This file would then need to be delivered to a victim via email, file-sharing, or other social engineering tactics. Upon opening the malicious file, the attacker could potentially access sensitive memory information, which may include encryption keys, passwords, or other sensitive data. Additionally, this vulnerability may enable the attacker to bypass ASLR or similar security mitigations and execute further attacks.

In conclusion, CVE-2024-30278 is a critical vulnerability affecting Media Encoder versions 23.6.5, 24.3, and earlier. It is vital for users to be vigilant in opening files from untrusted sources and ensure the timely application of patches and updates to their software. By staying informed about the latest exploits and vulnerabilities, users can better protect themselves and minimize their risks against cyberattacks.

Timeline

Published on: 06/13/2024 10:15:09 UTC
Last modified on: 07/15/2024 16:15:37 UTC