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Category:   Device (Embedded Server/Appliance)  >   Cisco Web Security Appliance Vendors:   Cisco
Cisco Web Security Appliance MIME Filtering Flaw Lets Remote Users Bypass Security Restrictions on the Target System
SecurityTracker Alert ID:  1037832
SecurityTracker URL:  http://securitytracker.com/id/1037832
CVE Reference:   CVE-2017-3827   (Links to External Site)
Date:  Feb 15 2017
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 9.9.9-894, 10.0.0-203
Description:   A vulnerability was reported in Cisco Web Security Appliance. A remote user can bypass security controls on the target system.

A remote user can send an email attachment with a specially crafted MIME header to bypass configured security filters on the target system.

The vendor has assigned bug IDs CSCvb91473 and CSCvc76500 to this vulnerability.

Martin Ervius reported this vulnerability.

Impact:   A remote user can bypass configured security filters on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170215-asyncos

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170215-asyncos (Links to External Site)
Cause:   Access control error

Message History:   None.


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