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Category:   Device (Router/Bridge/Hub)  >   Blue Coat ProxySG Vendors:   Blue Coat Systems
Blue Coat ProxySG Lets Remote Users Bypass Security Restrictions on the Target System
SecurityTracker Alert ID:  1036328
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jul 16 2016
Impact:   Host/resource access via network
Vendor Confirmed:  Yes  
Version(s): 6.5, 6.6
Description:   A vulnerability was reported in Blue Coat ProxySG. A remote user can bypass security controls on the target system.

In certain cases where the system must perform a reverse DNS lookup for a hostname, the system may not properly apply access, authentication, and scanning policy rules. A remote user can can exploit this to bypass security policy rules on the target system.

Systems configured as a forward proxy, reverse proxy, or web application firewall are affected.

Mike Brookes and Nathan Fowler reported this vulnerability.

Impact:   A remote user can bypass access, authentication, and scanning security controls on the target system.
Solution:   No solution was available at the time of this entry.

A workaround is described in the vendor's advisory.

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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