CVE-2018-0417 : Vulnerability Insights and Analysis
Learn about CVE-2018-0417, a vulnerability in Cisco Wireless LAN Controller Software allowing unauthorized GUI operations. Discover impacts, mitigation steps, and prevention measures.
Cisco Wireless LAN Controller Software GUI Privilege Escalation Vulnerability
Understanding CVE-2018-0417
This CVE involves a weakness in the TACACS authentication feature of Cisco Wireless LAN Controller (WLC) Software, allowing a local attacker with authenticated access to exploit the GUI for unauthorized operations.
What is CVE-2018-0417?
The vulnerability stems from the misinterpretation of a specific TACACS attribute in the response from the remote TACACS server, enabling attackers to gain administrative privileges on the affected WLC.
The Impact of CVE-2018-0417
The vulnerability has a CVSS base score of 7.5 (High severity) with significant impacts on confidentiality, integrity, and availability. Successful exploitation could lead to unauthorized user account creation and prohibited CLI commands execution.
Technical Details of CVE-2018-0417
Vulnerability Description
- Incorrect interpretation of a specific TACACS attribute
- Allows unauthorized operations through the GUI
Affected Systems and Versions
- Product: Cisco Wireless LAN Controller (WLC)
- Vendor: Cisco
- Affected Version: n/a
Exploitation Mechanism
- Attacker needs authenticated access through TACACS
- Exploitation via GUI to gain administrative privileges
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-provided patches or updates
- Monitor network for any unauthorized access attempts
- Restrict GUI access to authorized personnel only
Long-Term Security Practices
- Regular security training for IT staff
- Implement strong password policies
- Conduct regular security audits
Patching and Updates
- Regularly check for security advisories from Cisco
- Apply patches promptly to mitigate vulnerabilities