National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-0417 Detail

Current Description

A vulnerability in TACACS authentication with Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, local attacker to perform certain operations within the GUI that are not normally available to that user on the CLI. The vulnerability is due to incorrect parsing of a specific TACACS attribute received in the TACACS response from the remote TACACS server. An attacker could exploit this vulnerability by authenticating via TACACS to the GUI on the affected device. A successful exploit could allow an attacker to 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3.0 legend)
Impact Score: 5.9
Exploitability Score: 1.8


Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.6 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/105667 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041924 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-wlc-gui-privesc Vendor Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:cisco:wireless_lan_controller:8.7\(1.115\):*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
8.2.170.0
 cpe:2.3:o:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
8.4
Up to (excluding)
8.5.131.0
 cpe:2.3:o:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
8.6
Up to (excluding)
8.7.102.0


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-0417
NVD Published Date:
10/17/2018
NVD Last Modified:
10/09/2019