Vulnerability Details

Checkpoint VPN-1 PAT information disclosure

Published: 2008-11-05 15:59:22
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N

Recommendations:
We are not aware of a vendor approved solution at the current time. On the following platforms, we recommend you mitigate in the described manner: Checkpoint VPN-1 R55 Checkpoint VPN-1 R65 We recommend you mitigate in the following manner: Disable any implied rules and only open ports for required services Filter outbound ICMP time-to-live exceeded packets.

Summary:
Checkpoint VPN-1 PAT information disclosure

Technical Details:
By sending crafted packets to ports on the firewall which are mapped by port address translation (PAT) to ports on internal devices, information about the internal network may be disclosed in the resulting ICMP error packets. Port 18264/tcp on the firewall is typically configured in such a manner, with packets to this port being rewritten to reach the firewall management server. For example, the firewall fails to correctly sanitise the encapsulated IP headers in ICMP time-to-live exceeded packets resulting in internal IP addresses being disclosed. False positive: This could be false positive alert. Try running same scan against single host where this vulnerability is reported.

Detection Type:
Remote Vulnerability

Solution Type:
Mitigation

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2008-5849

References:

http://www.portcullis-security.com/293.php

Severity
Medium
CVSS Score
5.0
Published
2008-11-05
Modified
2018-07-07
Category
Firewalls

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