Check Point Firewall-1 AI R55 HFA 11 on Nokia VPN Connection denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

A vulnerability was found in Check Point Firewall-1 AI R55 HFA 11 on Nokia (Firewall Software). It has been classified as problematic. Affected is some unknown processing of the component VPN Connection. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was published 06/14/2005 by Marc Ruef with scip AG as nmap brings CheckPoint Firewall-1 down as confirmed mailinglist post (Nmap Development Mailinglist). The advisory is shared for download at seclists.org. The public release happened without coordination with the vendor. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a private exploit is available. The advisory points out:

During our testing the FW1 devices tend to break down. No matter if the scanning is done on one of the FW1 interfaces, on an existing or non-existing target host. No further traffic to the host or one of the cascaded target networks were possible afterwards. All connection requests wrapped in the VPN tunnel end in an usual connection timeout. Also the VRRP communication got some trouble. Other connections outside the VPN tunnel - as like default ssh connections or FW1 admin connections - are not affected and still working during the unwanted denial of service. Also new connections are possible without any problems.

A private exploit has been developed by Marc Ruef in ANSI C. It is declared as functional.

Upgrading eliminates this vulnerability. The mailinglist post contains the following remark:

The affected devices are not able to re-generate their working state for the still hanging VPN connections within a few minutes. A reboot was required to get the full working state back again.

Further details are available at gossamer-threads.com.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.3
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Functional
Author: Marc Ruef
Programming Language: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/14/2005 🔍
07/19/2015 +3687 days 🔍
07/24/2017 +736 days 🔍

Sourcesinfo

Vendor: checkpoint.com

Advisory: nmap brings CheckPoint Firewall-1 down
Researcher: Marc Ruef
Organization: scip AG
Status: Confirmed
scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍

Entryinfo

Created: 07/19/2015 13:46
Updated: 07/24/2017 12:50
Changes: 07/19/2015 13:46 (56), 07/24/2017 12:50 (2)
Complete: 🔍

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