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Check Point VPN-1 ISAKMP Buffer Overflow Vulnerability
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Secunia Advisory:
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SA10795
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Release Date:
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2004-02-05
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Last Update:
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2004-02-08
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Popularity:
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8,362 views
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Check Point VPN-1 SecureClient
Check Point VPN-1 SecuRemote
Check Point VPN-1 Server 4.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2004-0040
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Description:
Mark Dowd and Neel Mehta of ISS X-Force has discovered a vulnerability in Check Point VPN-1 Server and VPN clients, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the ISAKMP processing during authentication. This can be exploited to cause a buffer overflow by sending packets with an extremely large "Certificate Request" payload, which may allow execution of arbitrary code with SYSTEM or root privileges.
The following products are reportedly affected:
* Check Point VPN-1 Server 4.1 up to and including SP6 with OpenSSL Hotfix
* Check Point SecuRemote/SecureClient 4.1 up to and including build 4200
Solution:
According to the vendor, version 4.1 with SP6 is not affected. However, this contradicts information from ISS X-Force.
Check Point no longer supports the affected versions and therefore advises customers to upgrade to the NG versions of the products.
Provided and/or discovered by:
Mark Dowd and Neel Mehta, ISS X-Force.
Changelog:
2004-02-06: Added CERT reference.
2004-02-08: Vendor releases advisory.
Original Advisory:
ISS X-Force:
http://xforce.iss.net/xforce/alerts/id/163
Check Point:
http://www.checkpoint.com/techsupport/alerts/41_isakmp.html
Other References:
CERT VU#873334:
http://www.kb.cert.org/vuls/id/873334
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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10th Oct, 2008
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