Vulnerability CVE-2008-5849
Published: 2009-01-06   Modified: 2012-02-12

Description:
Check Point VPN-1 R55, R65, and other versions, when Port Address Translation (PAT) is used, allows remote attackers to discover intranet IP addresses via a packet with a small TTL, which triggers an ICMP_TIMXCEED_INTRANS (aka ICMP time exceeded in-transit) response containing an encapsulated IP packet with an intranet address, as demonstrated by a TCP packet to the firewall management server on port 18264.

Type:

CWE-200

 (Information Exposure)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Checkpoint -> Vpn-1 

 References:
https://svn.wald.intevation.org/svn/openvas/trunk/openvas-plugins/scripts/checkpoint-vpn1-pat-information-disclosure.nasl
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk36321
http://xforce.iss.net/xforce/xfdb/46645
http://www.vupen.com/english/advisories/2008/3229
http://www.securityfocus.com/bid/32306
http://www.portcullis-security.com/293.php
http://secunia.com/advisories/32728
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