Overview
The cybersecurity landscape is continuously evolving, with new vulnerabilities being discovered frequently. One such vulnerability, identified as CVE-2025-24303, affects the Linux kernel-mode driver for certain Intel(R) 800 Series Ethernet devices. This vulnerability is significant due to its potential for misuse in privilege escalation attacks, allowing an authenticated user to potentially gain unauthorized access or control over a system.
This vulnerability is inherent in versions of the Linux kernel-mode driver for Intel(R) 800 Series Ethernet devices prior to version 1.17.2. It is classified as a medium-to-high severity issue with a CVSS score of 7.8, indicating that it has a considerable impact on the confidentiality, integrity, and availability of the affected systems.
Vulnerability Summary
CVE ID: CVE-2025-24303
Severity: High (7.8 CVSS score)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Linux kernel-mode driver for Intel(R) 800 Series Ethernet | Before version 1.17.2
How the Exploit Works
The vulnerability stems from an improper check for unusual or exceptional conditions in the Linux kernel-mode driver for Intel(R) 800 Series Ethernet. When these conditions are met, the system’s safeguards can be bypassed, allowing an authenticated user to escalate their privileges. This escalation of privilege could potentially enable a malicious actor to take control of the system, alter its settings, access sensitive information, or propagate further attacks.
Conceptual Example Code
The below pseudocode provides a high-level conceptual example of how the vulnerability might be exploited.
def exploit():
# Authenticate as a low-privileged user
authenticate_as_user('low_privilege_user', 'password')
# Perform action that triggers the improper check
trigger_improper_check()
# Escalate privileges
escalate_privileges()
# Perform actions with escalated privileges
perform_malicious_actions()Please note that this pseudocode is a conceptual representation and is not intended to be used to exploit this vulnerability. It merely serves to illustrate the general method an attacker may use to take advantage of this vulnerability.
In conclusion, it is highly recommended to address this vulnerability as soon as possible by applying the vendor patch or utilizing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. Regular system updates and security audits are also crucial in maintaining a robust cybersecurity posture.
