CVE-2018-12591 Explained : Impact and Mitigation
Learn about CVE-2018-12591 affecting Ubiquiti Networks EdgeSwitch version 1.7.3 and earlier. Understand the vulnerability, impact, affected systems, exploitation, and mitigation steps.
The EdgeSwitch version 1.7.3 and earlier by Ubiquiti Networks have a vulnerability that allows for code execution and privilege escalation beyond authorized levels.
Understanding CVE-2018-12591
What is CVE-2018-12591?
The vulnerability in Ubiquiti Networks EdgeSwitch version 1.7.3 and prior arises from an improperly neutralized element in an OS command, enabling unauthorized code execution and privilege escalation.
The Impact of CVE-2018-12591
The lack of protection on the admin CLI permits attackers to execute arbitrary shell instructions, bypassing restricted CLI access.
Technical Details of CVE-2018-12591
Vulnerability Description
- Vulnerability Type: Improper Neutralization of Special Elements Used in an OS Command
- Attack Vector: Remote
- Security Risk: High
Affected Systems and Versions
- Product: EdgeSwitch
- Vendor: Ubiquiti Networks
- Versions Affected: 1.7.3 and earlier
Exploitation Mechanism
- Attackers exploit the lack of protection on the admin CLI to execute unauthorized code and escalate privileges.
Mitigation and Prevention
Immediate Steps to Take
- Update to the latest version of EdgeSwitch to patch the vulnerability.
- Restrict access to admin accounts and implement strong password policies.
Long-Term Security Practices
- Regularly monitor and audit CLI access and commands.
- Conduct security training for administrators on best practices to prevent unauthorized access.
Patching and Updates
- Apply security patches promptly to ensure protection against known vulnerabilities.