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Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities

medium Nessus Plugin ID 124331

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Wireless LAN Controller (WLC) is affected by following vulnerability

 - Multiple vulnerabilities in the administrative GUI configuration feature of Cisco Wireless LAN Controller (WLC) Software could allow an authenticated, remote attacker to cause the device to reload unexpectedly during device configuration when the administrator is using this GUI, causing a denial of service (DoS) condition on an affected device. The attacker would need to have valid administrator credentials on the device.These vulnerabilities are due to incomplete input validation for unexpected configuration options that the attacker could submit while accessing the GUI configuration menus. An attacker could exploit these vulnerabilities by authenticating to the device and submitting crafted user input when using the administrative GUI configuration feature. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.These vulnerabilities have a Security Impact Rating (SIR) of High because they could be exploited when the software fix for the Cisco Wireless LAN Controller Cross-Site Request Forgery Vulnerability [https://tools.cisco.com/ security/center/content/CiscoSecurityAdvisory/cisco- sa-20190417-wlc-csrf] is not in place. In that case, an unauthenticated attacker who first exploits the cross- site request forgery vulnerability could perform arbitrary commands with the privileges of the administrator user by exploiting the vulnerabilities described in this advisory. (CVE-2018-0248)

Please see the included Cisco BIDs and Cisco Security Advisory for more information

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvf16322

See Also

http://www.nessus.org/u?240d670d

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvf16322

Plugin Details

Severity: Medium

ID: 124331

File Name: cisco-sa-20190417-wlc-gui.nasl

Version: 1.8

Type: combined

Family: CISCO

Published: 4/26/2019

Updated: 5/14/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2018-0248

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:wireless_lan_controller_software, cpe:/h:cisco:wireless_lan_controller

Required KB Items: Host/Cisco/WLC/Version, Host/Cisco/WLC/Port

Exploit Ease: No known exploits are available

Patch Publication Date: 4/17/2019

Vulnerability Publication Date: 4/17/2019

Reference Information

CVE: CVE-2018-0248

BID: 108009