CVE-2020-9137 : Vulnerability Insights and Analysis
Learn about CVE-2020-9137, a privilege escalation flaw in Huawei CloudEngine switches, allowing local attackers to execute malicious scripts and escalate privileges. Find mitigation steps here.
A privilege escalation vulnerability in various versions of Huawei CloudEngine switches allows local attackers to execute specially crafted scripts, leading to privilege escalation.
Understanding CVE-2020-9137
What is CVE-2020-9137?
This CVE identifies a privilege escalation vulnerability in CloudEngine 12800, 5800, 6800, and 7800 due to inadequate input validation.
The Impact of CVE-2020-9137
The vulnerability enables local attackers with high privileges to execute malicious scripts, potentially resulting in privilege escalation.
Technical Details of CVE-2020-9137
Vulnerability Description
Insufficient input validation in Huawei CloudEngine switches allows local attackers to run specially crafted scripts, leading to privilege escalation.
Affected Systems and Versions
- Affected Products: CloudEngine 12800, 5800, 6800, 7800
- Vulnerable Versions: V200R002C50SPC800, V200R003C00SPC810, V200R005C00SPC800, V200R005C10SPC800, V200R019C00SPC800, V200R019C10SPC800, V200R005C20SPC800
Exploitation Mechanism
Successful exploitation of this vulnerability allows local attackers to escalate their privileges by executing specially crafted scripts.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-supplied patches promptly
- Implement the principle of least privilege to restrict user access
- Monitor and audit privileged user activities
Long-Term Security Practices
- Regularly update and patch all software and firmware
- Conduct security training for users to recognize and report suspicious activities
Patching and Updates
Ensure timely installation of security patches provided by Huawei to address the privilege escalation vulnerability in CloudEngine switches.