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TITLE:
Check Point Firewall CIFS Service Group Rule Bypass

SECUNIA ADVISORY ID:
SA16770

VERIFY ADVISORY:
https://secunia.com/advisories/16770/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
Check Point VPN-1/Firewall-1 NG
https://secunia.com/product/89/
Check Point VPN-1 Server 4.x
https://secunia.com/product/2965/
Check Point Provider-1
https://secunia.com/product/3262/
Check Point FireWall-1 GX 2.x
https://secunia.com/product/3263/
Check Point Firewall-1 4.x
https://secunia.com/product/88/
Check Point VPN-1/FireWall-1 NG with Application Intelligence (AI)
https://secunia.com/product/2542/
Check Point VPN-1/FireWall-1 VSX NG
https://secunia.com/product/3264/

DESCRIPTION:
fitz has reported a security issue in Check Point Firewall, which
potentially can be exploited by malicious people to bypass certain
security restrictions.

The security issue is caused due to an error in the CIFS service
group implementation. This may cause all traffic from a network in
the CIFS service group to either pass through the firewall or be
dropped at the firewall, depending on the configured rule.

The security issue has been reported in the following products:
* VPN-1/FireWall-1
* VPN-1 VSX
* Provider-1

SOLUTION:
The vendor suggests renaming the CIFS service group.

Refer to the vendor's advisory for instructions.

PROVIDED AND/OR DISCOVERED BY:
fitz

ORIGINAL ADVISORY:
Check Point:
https://secureknowledge.us.checkpoint.com/SecureKnowledge/viewSolutionDocument.do?id=sk31196

OTHER REFERENCES:
US-CERT VU#508209:
https://www.kb.cert.org/vuls/id/508209

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
https://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
https://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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