CVE-2018-14327 : Vulnerability Insights and Analysis
Learn about CVE-2018-14327, a vulnerability in the Alcatel OSPREY3_MINI Modem component on EE EE40VB 4G mobile broadband modems. Discover the impact, affected systems, exploitation mechanism, and mitigation steps.
This CVE involves a vulnerability in the Alcatel OSPREY3_MINI Modem component on EE EE40VB 4G mobile broadband modems. The issue allows local users to elevate their privileges by exploiting inadequate directory permissions.
Understanding CVE-2018-14327
What is CVE-2018-14327?
The vulnerability arises from the installer of the Alcatel OSPREY3_MINI Modem component on EE EE40VB 4G mobile broadband modems. It occurs in firmware versions prior to EE40_00_02.00_45, where directories have insufficient permissions, enabling local users to escalate their privileges.
The Impact of CVE-2018-14327
The vulnerability allows local users to elevate their privileges by inserting a malicious file into specific directories, potentially leading to unauthorized access and control of the affected system.
Technical Details of CVE-2018-14327
Vulnerability Description
The installer of the Alcatel OSPREY3_MINI Modem component on EE EE40VB 4G mobile broadband modems sets inadequate permissions for certain directories, enabling local users to gain elevated privileges.
Affected Systems and Versions
- Product: Alcatel OSPREY3_MINI Modem component
- Vendor: EE
- Versions Affected: Firmware versions prior to EE40_00_02.00_45
Exploitation Mechanism
- Local users can exploit the weak permissions set for directories "Web Connecton\EE40" and "Web Connecton\EE40\BackgroundService" by inserting a malicious file named ServiceManager.exe to elevate their privileges.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest firmware update provided by the vendor to address the vulnerability.
- Regularly monitor and restrict access to critical directories to prevent unauthorized modifications.
Long-Term Security Practices
- Implement the principle of least privilege to limit user access rights.
- Conduct regular security audits to identify and rectify permission-related vulnerabilities.
Patching and Updates
- Stay informed about security advisories and updates from the vendor to promptly apply patches and mitigate potential risks.