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Secunia Advisory SA9809

Ingate Firewall and SIParator Denial of Service and Filter Bypass
Secunia Advisory SA9809
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Release Date 2003-09-23
   
Popularity 7,240 views
Comments 0 comments

Criticality level Moderately criticalModerately critical
Impact Security Bypass
DoS
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Operating System
Ingate Firewall 3.x
Ingate SIParator 3.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2003-0467 CVSS available in Customer Area
  

Description

Ingate has reported two vulnerabilities in Ingate Firewall and SIParator, which can be exploited to bypass the firewall and cause a DoS (Denial of Service).

The firewall accepts packets with both the SYN and RST bits set when packet filtering for TCP is used. This can be exploited for OS fingerprinting and portscannings on otherwise protected systems.

It is furthermore possible to crash the firewall by sending specially crafted packets when "Dynamic FTP management" rules are used.

For more information:
SA9429


Solution
Update to version 3.2.1:
Further details available in Customer Area

Original Advisory
http://www.ingate.com/relnote-321.php

Other references
Further details available in Customer Area

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Ingate Firewall and SIParator Denial of Service and Filter Bypass
 
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