Check Point VPN-1 IKE buffer overflow

vpn1-ike-bo (14150) The risk level is classified as HighHigh Risk

Description:

Check Point VPN-1 and Check Point VPN clients (SecuRemote/SecureClient) could allow an attacker to gain unauthorized access. An attacker may be able to compromise a VPN-1 server and client system running SecuRemote/SecureClient, and may be able to compromise the Check Point FireWall-1 server. Attackers will be able to run commands under the security context of the super-user, usually SYSTEM or root.

Platforms Affected:

  • CheckPoint, FireWall-1 4.1
  • CheckPoint, FireWall-1 4.1 SP1
  • CheckPoint, FireWall-1 4.1 SP2
  • CheckPoint, FireWall-1 4.1 SP5
  • CheckPoint, FireWall-1 4.1 SP3
  • CheckPoint, FireWall-1 4.1 SP4
  • CheckPoint, FireWall-1 4.1 SP5a
  • CheckPoint, FireWall-1 Next Generation FP0
  • CheckPoint, FireWall-1 Next Generation FP1
  • CheckPoint, VPN-1 4.1 SP5a
  • CheckPoint, VPN-1 Next Generation FP0
  • CheckPoint, VPN-1 Next Generation FP1

Remedy:

For vulnerability detection:

Enable the following checks in the ISS Protection Platform:
IsakmpVulnerableVpn

For Virtual Patch:

Enable the following checks in the ISS Protection Platform:
ISAKMP_Certificate_Request_Overflow

For Manual Protection:

There is no remedy or effective workaround for this vulnerability. Upgrading to the NG versions of VPN-1 Server and SecureRemote/Client will remove this vulnerability. In addition, VPN-1 users running 4.1 versions should upgrade to Service Pack 6, and NG users should upgrade to Feature Pack 2 or later.

Consequences:

Gain Access

References:

  • CIAC Information Bulletin O-073, Check Point VPN-1 Server and VPN Client Buffer Overflow Vulnerability at http://www.ciac.org/ciac/bulletins/o-073.shtml.
  • Internet Security Systems Download Center, ISS Download Center at http://www.iss.net/download.
  • Internet Security Systems Security Advisory, February 4, 2004, Checkpoint VPN-1/SecureClient ISAKMP Buffer Overflow at http://xforce.iss.net/xforce/alerts/id/163.
  • BID-9582: Check Point VPN-1/SecuRemote ISAKMP Large Certificate Request Payload Buffer Overflow Vulnerability
  • CVE-2004-0040: Stack-based buffer overflow in Check Point VPN-1 Server 4.1 through 4.1 SP6 and Check Point SecuRemote/SecureClient 4.1 through 4.1 build 4200 allows remote attackers to execute arbitrary code via an ISAKMP packet with a large Certificate Request packet.
  • OSVDB ID: 4432: Check Point VPN-1/SecuRemote ISAKMP Overflow
  • US-CERT VU#873334: Check Point ISAKMP vulnerable to buffer overflow via Certificate Request

Reported:

Feb 04, 2004

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