CVE-2020-8948 : Security Advisory and Response
Learn about CVE-2020-8948, a vulnerability in Sierra Wireless Windows Mobile Broadband Driver Packages allowing arbitrary file overwriting. Find mitigation steps and prevention measures.
The Sierra Wireless Windows Mobile Broadband Driver Packages (MBDP) before build 5043 allow an unprivileged user to overwrite arbitrary files in arbitrary folders using hard links, potentially leading to arbitrary code execution with system privileges.
Understanding CVE-2020-8948
This CVE involves a vulnerability in Sierra Wireless Windows Mobile Broadband Driver Packages (MBDP) that could be exploited by an unprivileged user.
What is CVE-2020-8948?
The vulnerability in the Sierra Wireless Windows Mobile Broadband Driver Packages (MBDP) before build 5043 allows an unprivileged user to overwrite arbitrary files in arbitrary folders using hard links. This could enable the execution of arbitrary code with system privileges.
The Impact of CVE-2020-8948
Exploitation of this vulnerability could result in an attacker executing arbitrary code with system privileges, potentially leading to a complete system compromise.
Technical Details of CVE-2020-8948
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows an unprivileged user to overwrite arbitrary files in arbitrary folders using hard links, which can lead to the execution of arbitrary code with system privileges.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by an unprivileged user leveraging hard links to overwrite files in various folders, ultimately enabling the execution of arbitrary code with system privileges.
Mitigation and Prevention
Protecting systems from CVE-2020-8948 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply the latest security patches provided by Sierra Wireless.
- Monitor system activity for any signs of unauthorized file modifications.
- Restrict user permissions to minimize the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch all software and drivers to prevent vulnerabilities.
- Conduct security training for users to raise awareness of potential threats and best practices.
Patching and Updates
Ensure that the Sierra Wireless Windows Mobile Broadband Driver Packages are updated to build 5043 or later to mitigate the vulnerability.