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.
References (7)
Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/32306
Various Sources x_refsource_confirm
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk36321
Third Party Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/32728
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/46645
Various Sources x_refsource_misc
http://www.portcullis-security.com/293.php
Exploit x_refsource_misc
https://svn.wald.intevation.org/svn/openvas/trunk/openvas-plugins/scripts/checkpoint-vpn1-pat-information-disclosure.nasl
Third Party Advisory vdb-entry
x_refsource_vupen
http://www.vupen.com/english/advisories/2008/3229
Scores
EPSS
0.0162
EPSS Percentile
73.2%
Details
CWE
CWE-200
Status
published
Products (2)
checkpoint/vpn-1
r55
checkpoint/vpn-1
r65
Published
Jan 06, 2009
Tracked Since
Feb 18, 2026