CVE-2017-0038 : Security Advisory and Response
Learn about CVE-2017-0038, a security flaw in Microsoft Windows Graphics Component allowing remote attackers to access sensitive information. Find mitigation steps and prevention measures.
In February 2017, CVE-2017-0038 was published, affecting the Windows Graphics Component in various Microsoft operating systems.
Understanding CVE-2017-0038
What is CVE-2017-0038?
CVE-2017-0038 is a security vulnerability in the Graphics Device Interface (GDI) component of Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 versions. It allows remote attackers to access sensitive information stored in process heap memory.
The Impact of CVE-2017-0038
This vulnerability enables attackers to exploit a specially crafted EMF file, specifically through an EMR_SETDIBITSTODEVICE record, to alter the dimensions of the associated Device Independent Bitmap (DIB) and gain unauthorized access to sensitive data.
Technical Details of CVE-2017-0038
Vulnerability Description
- The gdi32.dll file in the GDI component of the affected Windows versions is susceptible to remote attacks that can retrieve sensitive information from process heap memory.
Affected Systems and Versions
- Windows Vista SP2
- Windows Server 2008 SP2 and R2 SP1
- Windows 7 SP1
- Windows 8.1
- Windows Server 2012 Gold and R2
- Windows RT 8.1
- Windows 10 Gold, 1511, and 1607
Exploitation Mechanism
- Attackers can exploit a specially crafted EMF file, leveraging an EMR_SETDIBITSTODEVICE record to modify DIB dimensions and access sensitive data stored in process heap memory.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Microsoft to address the vulnerability.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any suspicious activity that may indicate exploitation attempts.
Long-Term Security Practices
- Regularly update and patch all software and operating systems to prevent known vulnerabilities.
- Conduct security training for employees to raise awareness of social engineering tactics used in cyber attacks.
Patching and Updates
- Stay informed about security advisories and updates from Microsoft to promptly apply patches and protect systems from potential threats.