bugtraq - Cisco Security Advisory: Cisco AnyConnect Secure Mobility Client for Windows SBL Privileges Escalation Vulnerability

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Date: Wed,  8 Feb 2017 11:07:58 -0500
From: Cisco Systems Product Security Incident Response Team <psirt@...co.com>
To: bugtraq@...urityfocus.com
Cc: psirt@...co.com
Subject: Cisco Security Advisory: Cisco AnyConnect Secure Mobility Client for Windows SBL Privileges Escalation Vulnerability

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Cisco Security Advisory: Cisco AnyConnect Secure Mobility Client for Windows SBL Privileges Escalation Vulnerability

Advisory ID:  cisco-sa-20170208-anyconnect

Revision 1.0

For Public Release  2017 February 8 16:00  GMT (UTC)

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Summary
=======

A vulnerability in the Start Before Logon (SBL) module of Cisco AnyConnect Secure Mobility Client Software for Windows could allow an unauthenticated, local attacker to open Internet Explorer with the privileges of the SYSTEM user.

The vulnerability is due to insufficient implementation of the access controls. An attacker could exploit this vulnerability by opening the Internet Explorer browser. An exploit could allow the attacker to use Internet Explorer with the privileges of the SYSTEM user. This may allow the attacker to execute privileged commands on the targeted system.

Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available. This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170208-anyconnect

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