Overview
The cybersecurity community is currently faced with a significant vulnerability, identified as CVE-2025-25273, that has been discovered in the Linux kernel-mode driver for some Intel(R) 700 Series Ethernet. This vulnerability affects a wide range of systems running the aforementioned driver versions prior to 2.28.5.
The reason this vulnerability is of particular concern is because it allows an authenticated user to potentially escalate their privileges through local access. The potential consequences of successful exploitation include system compromise and data leakage, posing a serious threat to data integrity and system security.
Vulnerability Summary
CVE ID: CVE-2025-25273
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Intel(R) 700 Series Ethernet | Before version 2.28.5
How the Exploit Works
Insufficient control flow management within the Linux kernel-mode driver for some Intel(R) 700 Series Ethernet is the root cause of this vulnerability. An authenticated user with local access can manipulate the control flow of the driver, enabling them to escalate their privileges within the system. This escalation of privilege could allow the user to gain greater access rights, which could be used maliciously to compromise the system or leak data.
Conceptual Example Code
Here’s a conceptual example of how this vulnerability might be exploited. Please note that this is a hypothetical example, not a working exploit code:
# Gain initial low-privilege shell access
$ ssh low_priv_user@target_system
# Use a local exploit to manipulate the control flow of the driver
$ echo 'malicious_code' > /dev/intel_700_eth_driver
# Verify escalated privileges
$ idThis conceptual example demonstrates how an attacker might gain initial low-privilege access to a target system, then manipulate the control flow of the driver to escalate their privileges.
In mitigation of this vulnerability, it is recommended to apply the vendor patch as soon as it is available. As a temporary mitigation, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and prevent exploitation attempts.
