Re: Bypassing Personal Firewalls

From: Seth Knox (seth.knoxat_private)
Date: Fri Feb 21 2003 - 17:46:41 PST

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                              Sygate Security Response
    
    
    Sygate was made aware of an exposure in Sygate Personal Firewall and
    Sygate Security Agent on 2/21/2003 by way of the vuln-dev mailing list in
    a post by xenophi1e (oliver.laveryat_private).
    
    Sygate Security Bulletin ID
    ----------------------------
    SS20030221-0001
    
    
    Description
    ------------
    
    The reporter of the vulnerability described a problem in Sygate Personal 
    Firewall Pro, ZoneAlarm Pro 3.5, Zero-Knowledge Freedom Firewall, 
    LooknStop 2.04, and Norton Personal Firewall 2003.  The reporter of the 
    vulnerability described a problem in which an attacker can bypass a personal
    
    firewall and possibly perform malicious actions.
    
    
    Impact of this vulnerability
    -----------------------------
    
    Only versions prior to build 1175 (available 1/29/2003) of Sygate Personal 
    Firewall are impacted by this vulnerability.
    
    Only versions prior to build 1152 (available 10/22/2002) of Sygate Security 
    Agent Maintenance Release 1 are impacted by this vulnerability.
    
    Sygate Personal Firewall and Sygate Security Agent prevent a program from 
    creating a new thread within the address space of Sygate Personal Firewall 
    or Sygate Security Agent and therefore prevents a thread from being created
    to 
    execute malicious code.
    
    
    Affected software
    -----------------
    
    * Sygate Personal Firewall Pro 5.0 	
    * Sygate Personal Firewall 5.0
    * Sygate Security Agent
    
    
    Vulnerability resolution
    ------------------------
    
    Sygate Personal Firewall users running a Build prior to 1175 should download
    the latest version, available at:
    
    http://soho.sygate.com/free/default.php
    
    Sygate Security Agent users should contact their Sygate Enterprise Support 
    Representative for the latest update.
    
    In conformance with RFPolicy, Sygate has a securityat_private email
    address and encourages the security research community to utilize it when
    reporting exposures in Sygate products.
    
    Regards,
    
    Seth Knox
    Product Manager
    Sygate Technologies
    



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