Cisco Wireless LAN Controllers 5500 Series (POODLE)

medium Nessus Plugin ID 79690
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Synopsis

The remote device is missing a vendor-supplied security update.

Description

The remote Cisco Wireless LAN Controller (WLC) is affected by an information disclosure vulnerability known as POODLE. The vulnerability is due to the way SSL 3.0 handles padding bytes when decrypting messages encrypted using block ciphers in cipher block chaining (CBC) mode. MitM attackers can decrypt a selected byte of a cipher text in as few as 256 tries if they are able to force a victim application to repeatedly send the same data over newly created SSL 3.0 connections.

Solution

Apply the relevant patch referenced in Cisco bug CSCur27551 or contact the vendor regarding patch options.

Alternatively, to mitigate this issue, FIPS mode can be enabled with the following command 'config switchconfig fips-prerequisite enable'.
Note that this change can affect the operation of other features.

See Also

http://www.nessus.org/u?f86217b4

https://www.imperialviolet.org/2014/10/14/poodle.html

https://www.openssl.org/~bodo/ssl-poodle.pdf

https://tools.ietf.org/html/draft-ietf-tls-downgrade-scsv-00

Plugin Details

Severity: Medium

ID: 79690

File Name: cisco-sa-20141015-poodle-wlc.nasl

Version: 1.13

Type: combined

Family: CISCO

Published: 12/3/2014

Updated: 8/20/2020

Dependencies: cisco_wlc_version.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:TF/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: 10/16/2014

Vulnerability Publication Date: 10/14/2014

Reference Information

CVE: CVE-2014-3566

BID: 70574

CERT: 577193

CISCO-SA: cisco-sa-20141015-poodle

CISCO-BUG-ID: CSCur27551