Cisco AnyConnect Secure Mobility Client 4.0.x < 4.3.05017 / 4.4.x < 4.4.00243 SBL Module Privilege Escalation

Medium Nessus Plugin ID 97226


A VPN application installed on the remote host is affected by a privilege escalation vulnerability.


The version of Cisco AnyConnect Secure Mobility Client installed on the remote Windows host is 4.0.x prior to 4.3.05017 or 4.4.x prior to 4.4.00243. It is, therefore, affected by a privilege escalation vulnerability in the Start Before Logon (SBL) module due to insufficient access controls. A local attacker can exploit this to open Internet Explorer with SYSTEM level privileges.

Note that the SBL module is not installed by default.


Upgrade to Cisco AnyConnect Secure Mobility Client version 4.3.05017 / 4.4.00243 or later. Alternatively, either remove the SBL module or set 'UseStartBeforeLogon' to false in the client profile XML file.

See Also

Plugin Details

Severity: Medium

ID: 97226

File Name: cisco_anyconnect_CSCvc43976.nasl

Version: $Revision: 1.4 $

Type: local

Agent: windows

Family: Windows

Published: 2017/02/17

Modified: 2017/06/29

Dependencies: 54953

Risk Information

Risk Factor: Medium


Base Score: 6.9

Temporal Score: 5.7

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND


Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/a:cisco:anyconnect_secure_mobility_client

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/02/08

Vulnerability Publication Date: 2017/02/08

Reference Information

CVE: CVE-2017-3813

BID: 96145

OSVDB: 151766

CISCO-SA: cisco-sa-20170208-anyconnect