Cisco AnyConnect Secure Mobility Client < 3.1(5187) (POODLE)

medium Nessus Plugin ID 78676
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Synopsis

The remote host is affected by an information disclosure vulnerability.

Description

The remote host has a version of Cisco AnyConnect prior to 3.1(5187).
It is, therefore, 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. A MitM attacker 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

Upgrade to Cisco AnyConnect Secure Mobility Client 3.1(5187) or later.

Alternatively, apply the workaround provided by Microsoft.

See Also

http://www.nessus.org/u?7453d3be

https://docs.microsoft.com/en-us/security-updates/SecurityAdvisories/2015/3009008

https://www.openssl.org/news/secadv/20141015.txt

https://www.openssl.org/news/vulnerabilities.html

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: 78676

File Name: cisco_anyconnect_3_1_5187.nasl

Version: 1.13

Type: local

Agent: windows

Family: Windows

Published: 10/24/2014

Updated: 11/15/2018

Dependencies: cisco_anyconnect_vpn_installed.nasl, smb_kb3009008.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:anyconnect_secure_mobility_client

Required KB Items: installed_sw/Cisco AnyConnect Secure Mobility Client, SMB/Registry/Enumerated

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: CSCur27617