PT-2015-7174 · Cisco · Cisco Wireless Lan Controller+1

Published 2015-10-02 · Updated 2017-01-04 · CVE-2015-6311

Positive Technologies (AI Summary)

CVSS v2.0

6.1

Medium

Base vector

AV:A/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco Wireless LAN Controller (WLC) devices with software 7.0(240.0), 7.3(101.0), and 7.4(1.19)

Description The issue is a denial of service vulnerability that could allow an unauthenticated, adjacent attacker to cause a device outage by sending malformed 802.11i management data to a managed access point. This is due to a failure to properly discard certain malformed values in an 802.11i management frame received from a wireless client. To exploit this vulnerability, an attacker must be on the same broadcast or collision domain as the targeted device.

Recommendations For version 7.0(240.0), update to a fixed software version. For version 7.3(101.0), update to a fixed software version. For version 7.4(1.19), update to a fixed software version. As a temporary workaround, consider restricting access to the affected Cisco WLC devices to minimize the risk of exploitation.

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2015-6311

Affected Products

Cisco Wireless Lan Controller

Cisco Wls

References · 5

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20151002-CVE-2015-6311 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2015-6311 · Security Note
• http://tools.cisco.com/security/center/viewAlert.x?alertId=41249 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6311 · Security Note
• http://securitytracker.com/id/1033731 · Note