PT-2019-1983 · Cisco · Cisco Wireless Lan Controller+1

Published 2019-04-17 · Updated 2021-04-15 · CVE-2019-1796

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco Wireless LAN Controller (WLC) Software versions prior to 8.2.170.0 Cisco Wireless LAN Controller (WLC) Software versions prior to 8.5.150.0 Cisco Wireless LAN Controller (WLC) Software versions prior to 8.8.100.0

Description A vulnerability in the handling of Inter-Access Point Protocol (IAPP) messages by Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability exists because the software improperly validates input on fields within IAPP messages. An attacker could exploit the vulnerability by sending malicious IAPP messages to an affected device. A successful exploit could allow the attacker to cause the Cisco WLC Software to reload, resulting in a DoS condition.

Recommendations For versions prior to 8.2.170.0, update to version 8.2.170.0 or later. For versions prior to 8.5.150.0, update to version 8.5.150.0 or later. For versions prior to 8.8.100.0, update to version 8.8.100.0 or later.

Fix

DoS

RCE

Weakness Enumeration

CWE-399

CWE-20

Related Identifiers

BDU:2019-01676

CVE-2019-1796

Affected Products

Cisco Wireless Lan Controller

Cisco Wls

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2019-1796 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-wlc-iapp · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-1796 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-01676 · Security Note
• http://securityfocus.com/bid/108008 · Note