CVE-2019-0707 : Vulnerability Insights and Analysis
Learn about CVE-2019-0707, a security flaw in the Network Driver Interface Specification (NDIS) allowing attackers to elevate privilege levels in Windows systems. Find out affected versions and mitigation steps.
A security flaw in the Network Driver Interface Specification (NDIS) allows attackers to elevate their privilege level by running a modified application locally, known as the 'Windows NDIS Elevation of Privilege Vulnerability'.
Understanding CVE-2019-0707
What is CVE-2019-0707?
There is a security flaw in the Network Driver Interface Specification (NDIS) where ndis.sys does not validate the size of a buffer before copying memory to it. This vulnerability allows an attacker to increase their privilege level by running a modified application locally. It is also known as the 'Windows NDIS Elevation of Privilege Vulnerability'.
The Impact of CVE-2019-0707
This vulnerability can be exploited by attackers to elevate their privilege level, potentially leading to unauthorized access and control over affected systems.
Technical Details of CVE-2019-0707
Vulnerability Description
An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) when ndis.sys fails to check the length of a buffer prior to copying memory to it. To exploit the vulnerability, in a local attack scenario, an attacker could run a specially crafted application to elevate the attacker's privilege level, aka 'Windows NDIS Elevation of Privilege Vulnerability'.
Affected Systems and Versions
- Windows Server: 2012, 2012 (Core installation), 2012 R2, 2012 R2 (Core installation), 2016, 2016 (Core installation), version 1803 (Core Installation), 2019, 2019 (Core installation)
- Windows: 8.1 for 32-bit systems, 8.1 for x64-based systems, RT 8.1, 10 for various systems and versions
Exploitation Mechanism
The vulnerability arises due to the lack of proper validation of buffer sizes in the NDIS driver, allowing attackers to manipulate memory and execute malicious code to escalate privileges.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Microsoft promptly
- Monitor for any unusual system behavior or unauthorized access
Long-Term Security Practices
- Regularly update and patch all software and operating systems
- Implement least privilege access controls to limit potential damage
Patching and Updates
Ensure that all affected systems are updated with the latest security patches to mitigate the risk of exploitation.