CVE-2017-8381 Explained : Impact and Mitigation
Discover the impact of CVE-2017-8381 on XnView Classic for Windows Version 2.40. Learn about the vulnerability allowing remote code execution and how to mitigate the risk.
A vulnerability has been identified in XnView Classic for Windows Version 2.40 that allows remote attackers to execute arbitrary code by exploiting a specially crafted .mkv file.
Understanding CVE-2017-8381
This CVE entry describes a security flaw in XnView Classic for Windows Version 2.40 that can be exploited by attackers to run malicious code.
What is CVE-2017-8381?
The vulnerability in XnView Classic for Windows Version 2.40 allows remote attackers to execute arbitrary code by using a specially crafted .mkv file. The issue arises when opening a directory in "Browser" mode, mishandling the file and leading to the execution of arbitrary code due to a "User Mode Write Access Violation near NULL" in XnView.exe.
The Impact of CVE-2017-8381
This vulnerability poses a significant risk as it enables remote attackers to execute malicious code on the affected system, potentially leading to unauthorized access, data theft, or system compromise.
Technical Details of CVE-2017-8381
XnView Classic for Windows Version 2.40 is susceptible to exploitation due to the following reasons:
Vulnerability Description
The vulnerability allows remote attackers to execute arbitrary code by exploiting a specially crafted .mkv file during the opening of a directory in "Browser" mode, leading to a "User Mode Write AV near NULL" in XnView.exe.
Affected Systems and Versions
- Product: XnView Classic
- Version: 2.40
Exploitation Mechanism
The vulnerability can be exploited by remote attackers with user assistance by using a specially crafted .mkv file to trigger the mishandling of files in "Browser" mode, resulting in the execution of arbitrary code.
Mitigation and Prevention
To address CVE-2017-8381, consider the following steps:
Immediate Steps to Take
- Update XnView Classic to a patched version that addresses the vulnerability.
- Avoid opening files from untrusted sources or unknown individuals.
Long-Term Security Practices
- Regularly update software and applications to the latest versions.
- Implement network security measures to prevent unauthorized access.
Patching and Updates
Ensure that XnView Classic is regularly updated with the latest security patches to mitigate the risk of exploitation.