Privilege escalation in Cisco Wireless LAN Controller - CVE-2018-0417
Published: October 18, 2018
Vulnerability identifier: #VU15410
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-0417
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Wireless LAN Controller
Cisco Wireless LAN Controller
Detailed vulnerability description
The vulnerability allows a remote authenticated attacker to gain elevated privileges on the target system.
The weakness exists in TACACS authentication with Cisco Wireless LAN Controller (WLC) Software due to incorrect parsing of a specific TACACS attribute received in the TACACS response from the remote TACACS server. A remote attacker can authenticate via TACACS to the GUI on the affected device, create local user accounts with administrative privileges on an affected WLC and execute other commands that are not allowed from the CLI and should be prohibited.
How to mitigate CVE-2018-0417
The vulnerability has been addressed in the versions 8.8(1.57), 8.7(102.0), 8.7(1.135), 8.5(131.0), 8.5(124.51), 8.3(143.6), 8.2(170.0), 8.2(167.211).