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CVE-2025-24325: Improper Input Validation in Intel(R) 800 Series Ethernet Driver Allows Potential Escalation of Privilege

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Overview

Vulnerability CVE-2025-24325 is a significant security issue that directly impacts the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet before version 1.17.2. This vulnerability arises from improper input validation, leading to a potential escalation of system privileges. As a result, any authenticated user with local access can potentially compromise the system or lead to data leakage. Given the widespread use of Linux and Intel hardware, this vulnerability could affect a vast number of systems worldwide, underscoring the critical importance of its mitigation.

Vulnerability Summary

CVE ID: CVE-2025-24325
Severity: High (8.8 CVSS Severity Score)
Attack Vector: Local
Privileges Required: User
User Interaction: None
Impact: Potential system compromise or data leakage due to privilege escalation

Affected Products

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Product | Affected Versions

Intel(R) 800 Series Ethernet Driver | Before version 1.17.2

How the Exploit Works

The exploit takes advantage of the improper input validation in the Linux kernel-mode driver for some Intel(R) 800 Series Ethernet. An authenticated user, using local access, could feed the driver maliciously crafted data. Due to the lack of proper input validation, this data could trigger an unexpected behavior in the driver, leading to a scenario where privileges could be escalated, allowing the attacker to perform unauthorized actions or access sensitive information.

Conceptual Example Code

Assuming a local context, an attacker might execute a command like the following:

echo 'malicious_payload' > /proc/driver/intel_ethernet

This action writes the ‘malicious_payload’ to a proc file associated with the driver. If the driver does not correctly validate this input, it could lead to unexpected behavior, including privilege escalation.
Please note that this is a conceptual example and may not represent an accurate depiction of the exploit. It is provided to illustrate the general mechanism of this vulnerability.

Mitigation Guidance

Users affected by this vulnerability should apply the vendor patch as soon as possible. If immediate patching is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation. It is crucial to keep all systems updated to prevent exploitation of known vulnerabilities.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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