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KPMG-2002019: BlackICE Agent not Firewalling After Standby
From: Peter Gründl <pgrundl () kpmg dk>
Date: Thu, 6 Jun 2002 14:13:22 +0200

Title: BlackICE Agent not Firewalling After Standby
BUG-ID: 2002019                              
Released: 06th Jun 2002

In a default installation, The BlackICE Agent might not reactivate
when the host returns from standby. This could allow a malicious
user to bypass the firewall completely.

- BlackICE Agent 3.1 eal on Windows 2000 laptop

Not Vulnerable:
- BlackICE Agent 3.1 ebh on Windows 2000 laptop

The BlackICE Agent setup contains the parameter 
"restart.whenSuspend", which should be enabled by default. This,
however, is not always the case, and as a result the firewall
might not reactivate after a system standby. The BlackICE Agent
would still give all the appearences of being active, but the
filter function would not be in effect, and network communication
would be possible to the same extent as if the software wasn't

Vendor URL: 
You can visit the vendor webpage here: http://www.iss.net

Vendor response: 
The vendor was notified on the 15th of March, 2002. The issue was
assigned case number 526997. On the 18th of March, we received a
workaround that seemingly solved the issue. On the 6th of June, 2002
the vendor informed us that the issue had been corrected in the
latest build.

Corrective action: 
Upgrade to BlackICE Agent V3.1 EBH, available through:

Author: Andreas Sandor (asandor () kpmg dk)
KPMG is not responsible for the misuse of the information we provide
through our security advisories. These advisories are a service to
the professional security community. In no event shall KPMG be lia-
ble for any consequences whatsoever arising out of or in connection
with the use or spread of this information.

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  • KPMG-2002019: BlackICE Agent not Firewalling After Standby Peter Gründl (Jun 06)
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