Check Point VPN-1 PAT information disclosure
| vpn1-pat-information-disclosure (46645) |  Low Risk |
Description:
Check Point VPN-1 could allow a remote attacker to obtain sensitive information, caused by the improper handling of packets mapped by port address translation (PAT) to ports on internal devices. By sending a specially-crafted packet containing a small time-to-live (TTL) value to TCP port 18264, a remote attacker could exploit this vulnerability to view the firewall management server IP address and obtain other sensitive information from internal devices.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | None |
| Availability Impact: | None |
| Temporal Score: | 4 |
| Exploitability: | Unproven |
| Remediation Level: | Unavailable |
| Report Confidence: | Uncorroborated |
Consequences:
Obtain Information
Remedy:
No remedy available as of July 9, 2011.
References:
- Check Point Web site: Check Point.
- Portcullis Security Advisory 08-009: Checkpoint VPN-1 PAT information disclosure.
- BID-32306: Check Point VPN-1 Port Address Translation Information Disclosure Weakness
- 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.
- SA32728: Checkpoint VPN-1 Information Disclosure Vulnerability
- VUPEN/ADV-2008-3229: Checkpoint VPN-1 PAT Feature Information Disclosure Vulnerability
Platforms Affected:
- CheckPoint VPN-1 FireWall-1 Next Generation R55
- CheckPoint VPN-1 FireWall-1 Next Generation R65
Reported:
Oct 24, 2008
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.