National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-1796 Detail

Current 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 exist 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. Software versions prior to 8.2.170.0, 8.5.150.0, and 8.8.100.0 are affected.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.5 MEDIUM
Vector: AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.8


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

CVSS v2.0 Severity and Metrics:

Base Score: 6.1 MEDIUM
Vector: (AV:A/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 6.5


Access Vector (AV): Local_Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/108008 Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-wlc-iapp Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
8.2.170.0
 cpe:2.3:a:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
8.3.143.0
Up to (excluding)
8.5.150.0
 cpe:2.3:a:cisco:wireless_lan_controller:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
8.7.106.0
Up to (excluding)
8.8.100.0


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-1796
NVD Published Date:
04/17/2019
NVD Last Modified:
04/19/2019