high
7.8
CWE
862 264
Advisory Published
Updated

CVE-2017-3813

First published: Thu Feb 09 2017(Updated: )

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. This vulnerability affects versions prior to released versions 4.4.00243 and later and 4.3.05017 and later. Cisco Bug IDs: CSCvc43976.

Credit: ykramarz@cisco.com psirt@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco AnyConnect Secure=4.0.00048
Cisco AnyConnect Secure=4.0.00051
Cisco AnyConnect Secure=4.0.00052
Cisco AnyConnect Secure=4.0.00057
Cisco AnyConnect Secure=4.0.00061
Cisco AnyConnect Secure=4.1.00028
Cisco AnyConnect Secure=4.1.02011
Cisco AnyConnect Secure=4.1.04011
Cisco AnyConnect Secure=4.1.06013
Cisco AnyConnect Secure=4.1.06020
Cisco AnyConnect Secure=4.1.08005
Cisco AnyConnect Secure=4.2.00096
Cisco AnyConnect Secure=4.2.01022
Cisco AnyConnect Secure=4.2.01035
Cisco AnyConnect Secure=4.2.02075
Cisco AnyConnect Secure=4.2.03013
Cisco AnyConnect Secure=4.2.04018
Cisco AnyConnect Secure=4.2.04039
Cisco AnyConnect Secure=4.2.05015
Cisco AnyConnect Secure=4.2.06014
Cisco AnyConnect Secure=4.3.00748
Cisco AnyConnect Secure=4.3.01095
Cisco AnyConnect Secure=4.3.02039
Cisco AnyConnect Secure=4.3.03086
Cisco AnyConnect Secure=4.3.04027
=4.0.00048
=4.0.00051
=4.0.00052
=4.0.00057
=4.0.00061
=4.1.00028
=4.1.02011
=4.1.04011
=4.1.06013
=4.1.06020
=4.1.08005
=4.2.00096
=4.2.01022
=4.2.01035
=4.2.02075
=4.2.03013
=4.2.04018
=4.2.04039
=4.2.05015
=4.2.06014
=4.3.00748
=4.3.01095
=4.3.02039
=4.3.03086
=4.3.04027

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-3813?

    CVE-2017-3813 has a critical severity rating due to its potential to allow unauthenticated attackers to execute code with SYSTEM privileges.

  • How do I fix CVE-2017-3813?

    To mitigate CVE-2017-3813, upgrade to the latest version of Cisco AnyConnect Secure Mobility Client available.

  • Who is affected by CVE-2017-3813?

    CVE-2017-3813 affects various versions of Cisco AnyConnect Secure Mobility Client, including versions 4.0.x, 4.1.x, 4.2.x, and 4.3.x.

  • What could an attacker do with CVE-2017-3813?

    An attacker exploiting CVE-2017-3813 could potentially open Internet Explorer with SYSTEM user privileges, leading to further system compromise.

  • Is there a workaround for CVE-2017-3813?

    There are no known workarounds for CVE-2017-3813; the recommended action is to apply the relevant software updates.

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