Check Point VPN-1 ASN.1 Decoding Heap Overflow Vulnerability - Secunia Advisories - Vulnerability Intelligence

Check Point VPN-1 ASN.1 Decoding Heap Overflow Vulnerability
Secunia Advisory:	SA12177	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2004-07-29
Last Update:	2004-08-03
Popularity:	10,896 views

Critical:	Highly critical
Impact:	System access
Where:	From remote
Solution Status:	Vendor Patch

Software:	Check Point FireWall-1 GX 2.x Check Point Provider-1 Check Point SSL Network Extender Check Point VPN-1 SecureClient Check Point VPN-1 SecuRemote Check Point VPN-1/Firewall-1 NG Check Point VPN-1/FireWall-1 NG with Application Intelligence (AI) Check Point VPN-1/FireWall-1 VSX NG

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2004-0699

Description: ISS X-Force has discovered a vulnerability in various Check Point VPN-1 products, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to a boundary error in the ASN.1 decoding library during setup of the initial encrypted connection. This can be exploited to cause a heap overflow by establishing a VPN connection and sending a malicious packet containing specially crafted fields. Successful exploitation does not require any authentication and may allow execution of arbitrary code on a vulnerable system. Solution: See original vendor advisory for updates. Provided and/or discovered by: Mark Dowd and Neel Mehta, ISS X-Force. Changelog: 2004-08-03: Added link to US-CERT vulnerability note. Original Advisory: Check Point: http://www.checkpoint.com/techsupport/alerts/asn1.html ISS: http://xforce.iss.net/xforce/alerts/id/178 Other References: US-CERT VU#435358: http://www.kb.cert.org/vuls/id/435358

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