CVE-2017-8156 Explained : Impact and Mitigation
Learn about CVE-2017-8156, a security flaw in Huawei's CPE product B2338-168 V100R001C00 allowing unauthorized access to the serial port, potentially leading to complete control by attackers. Find mitigation steps and preventive measures here.
A security flaw in the serial port of Huawei's CPE product B2338-168 V100R001C00 allows unauthorized access, posing a risk of complete control by attackers.
Understanding CVE-2017-8156
This CVE involves a no authentication vulnerability in the outdoor unit of the CPE product B2338-168 V100R001C00.
What is CVE-2017-8156?
The vulnerability permits unauthorized access to the serial port on the circuit board of the outdoor unit, enabling attackers to log in without authentication, potentially leading to full control over the CPE.
The Impact of CVE-2017-8156
Exploitation of this vulnerability could result in attackers gaining unauthorized access to the CPE's serial port and subsequently taking control over the outdoor unit.
Technical Details of CVE-2017-8156
This section provides more technical insights into the vulnerability.
Vulnerability Description
The flaw allows unauthorized access to the serial port of the outdoor unit of the CPE product B2338-168 V100R001C00, enabling login without authentication.
Affected Systems and Versions
- Affected Product: B2338-168
- Vendor: Huawei Technologies Co., Ltd.
- Affected Version: V100R001C00
Exploitation Mechanism
Attackers can exploit the vulnerability by accessing the serial port on the circuit board of the outdoor unit, bypassing authentication to gain control over the CPE.
Mitigation and Prevention
Protecting systems from this vulnerability is crucial to prevent unauthorized access and potential control by malicious actors.
Immediate Steps to Take
- Disable unused ports and services to reduce the attack surface.
- Implement strong authentication mechanisms to secure access to the CPE.
- Regularly monitor and audit access to the serial port to detect any unauthorized activities.
Long-Term Security Practices
- Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
- Keep systems up to date with the latest security patches and firmware updates.
Patching and Updates
- Apply patches provided by Huawei to address the vulnerability and enhance the security of the affected systems.