-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Cisco WebEx Browser Extension Remote Code Execution Vulnerability

Advisory ID: cisco-sa-20170124-webex 

Revision 1.0

For Public Release 2017 January 22 18:30  UTC (GMT)
Last Updated  2017 January 24 18:30  UTC (GMT)

+---------------------------------------------------------------------

Summary
=======

A vulnerability in the Cisco WebEx browser extensions provided by Cisco
WebEx Meetings Server and Cisco WebEx Meetings Center could allow an
unauthenticated, remote attacker to execute arbitrary code on a targeted
system.

The vulnerability is due to the use of a crafted pattern by the affected
software. An attacker could exploit this vulnerability by directing a
user to a web page that contains the crafted pattern and starting a
WebEx session. The WebEx session could allow the attacker to execute
arbitrary code on the affected system, which could be used to conduct
further attacks.

Cisco has begun to release software updates that address this
vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170124-webex

-----BEGIN PGP SIGNATURE-----
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=dTTj
-----END PGP SIGNATURE-----