Information disclosure in Checkpoint Vpn-1

CVE-2008-5849

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.

Vulnerability class: Information Disclosure

EPSS: 0.016 (73.6th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References