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Checkpoint VPN-1 Information Disclosure Vulnerability
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Secunia Advisory:
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SA32728
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Release Date:
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2008-11-21
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Popularity:
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1,800 views
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Critical:
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Not critical
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Impact:
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Exposure of system information
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Check Point VPN-1 Power NGX
Check Point VPN-1 UTM NGX
Check Point VPN-1/FireWall-1 NGX
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Description:
Tim Brown and Mark Lowe have reported a vulnerability in Checkpoint VPN-1 products, which can be exploited by malicious people to disclose certain system information.
The vulnerability is caused due to an error in the port address translation (PAT) feature when responding with ICMP time exceeded messages. This can be exploited to disclose e.g. the internal IP address of the firewall management server by sending a specially crafted packet containing a low time-to-live (TTL) value to port 18264/TCP.
Solution:
The vendor recommends to block ICMP errors.
Provided and/or discovered by:
Tim Brown and Mark Lowe, Portcullis Computer Security
Original Advisory:
CheckPoint (Solution ID: sk36321):
https://supportcenter.checkpoint.com/supportcenter/index.jsp
Portcullis Computer Security:
http://www.portcullis.co.uk/293.php
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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