CVE-2018-16867 : Vulnerability Insights and Analysis
Discover the impact of CVE-2018-16867, a path traversal vulnerability in qemu Media Transfer Protocol (MTP) before version 3.1.0. Learn about affected systems, exploitation risks, and mitigation steps.
An issue was discovered in qemu Media Transfer Protocol (MTP) prior to version 3.1.0. The vulnerability allows unauthorized access and modification of files, potentially leading to a denial-of-service or arbitrary code execution.
Understanding CVE-2018-16867
This CVE involves a path traversal vulnerability in the usb_mtp_write_data function in qemu Media Transfer Protocol (MTP) before version 3.1.0.
What is CVE-2018-16867?
- Path traversal vulnerability in qemu Media Transfer Protocol (MTP) before version 3.1.0
- Incorrect sanitization of filenames in the usb_mtp_write_data function
- Allows unauthorized access and modification of files
The Impact of CVE-2018-16867
- CVSS Base Score: 7 (High Severity)
- Attack Vector: Local
- Attack Complexity: High
- Availability Impact: High
- Scope: Changed
- Enables unauthorized access and potential code execution on the host system
Technical Details of CVE-2018-16867
This section provides detailed technical information about the vulnerability.
Vulnerability Description
- Path traversal vulnerability in usb_mtp_write_data function
- Found in hw/usb/dev-mtp.c due to incorrect sanitization of filenames
Affected Systems and Versions
- Product: QEMU
- Vendor: [UNKNOWN]
- Version: 3.1.0
Exploitation Mechanism
- When the guest device is mounted in read-write mode, unauthorized access and modification of files are possible
- This could lead to a denial-of-service situation or arbitrary code execution on the host system
Mitigation and Prevention
Protecting systems from CVE-2018-16867 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply patches and updates provided by the vendor
- Restrict guest device access to mitigate unauthorized file access
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities
- Implement proper input validation and sanitization mechanisms
Patching and Updates
- Check for security advisories from the vendor
- Apply recommended patches and updates promptly