Check Point VPN-1 ASN.1 Buffer Overflow Vulnerability
BID:10820
Info
Check Point VPN-1 ASN.1 Buffer Overflow Vulnerability
| Bugtraq ID: | 10820 |
| Class: | Boundary Condition Error |
| CVE: |
CVE-2004-0699 |
| Remote: | Yes |
| Local: | No |
| Published: | Jul 28 2004 12:00AM |
| Updated: | Jul 12 2009 06:16AM |
| Credit: | Discovery of this vulnerability is credited to Mark Dowd and Neel Mehta of the Internet Security Systems X-Force. |
| Vulnerable: |
Check Point Software VSX FireWall-1 GX Check Point Software VPN-1/Firewall-1 VSX NG with AI Release 2 Check Point Software VPN-1/Firewall-1 VSX NG with AI Release 1 Check Point Software VPN-1/Firewall-1 VSX 2.0.1 Check Point Software VPN-1 VSX 2.0.1 Check Point Software SSL Network Extender Check Point Software SecuRemote NG with Application Intelligence R56 Check Point Software SecuRemote 4.1 Check Point Software SecuRemote 4.0 Check Point Software SecureClient NG with Application Intelligence R56 Check Point Software SecureClient 4.1 Check Point Software SecureClient 4.0 Check Point Software Provider-1 NG with Application Intelligence R55 Check Point Software Provider-1 NG with Application Intelligence R54 Check Point Software NG-AI R55W Check Point Software NG-AI R55 Check Point Software NG-AI R54 Check Point Software FireWall-1 VSX NG with Application Intelligence Check Point Software FireWall-1 VSX 2.0.1 Check Point Software FireWall-1 Next Generation FP3 Check Point Software FireWall-1 GX 2.5 Check Point Software FireWall-1 GX 2.0 |
| Not Vulnerable: | |
Discussion
Check Point VPN-1 ASN.1 Buffer Overflow Vulnerability
A remote buffer overflow vulnerability is reported in Check Point VPN-1 that may allow a remote attacker to execute arbitrary code in order to gain unauthorized access. This issue results from insufficient boundary checks performed by the application when processing user-supplied data.
This overflow occurs during the initial key exchange process, and can be triggered with a single UDP packet. Since ISAKMP uses the UDP transport, a spoofed source address can be used in an attack.
Check Point reports that for a single packet attack to succeed, VPN-1 must be configured for aggressive mode key exchange. Without aggressive mode, an attacker must initiate a real key negotiation session.
This vulnerability can lead to remote code execution in the context of the VPN-1 process. This can lead to a complete system compromise.
Check Point has released an advisory and fixes for this issue.
A remote buffer overflow vulnerability is reported in Check Point VPN-1 that may allow a remote attacker to execute arbitrary code in order to gain unauthorized access. This issue results from insufficient boundary checks performed by the application when processing user-supplied data.
This overflow occurs during the initial key exchange process, and can be triggered with a single UDP packet. Since ISAKMP uses the UDP transport, a spoofed source address can be used in an attack.
Check Point reports that for a single packet attack to succeed, VPN-1 must be configured for aggressive mode key exchange. Without aggressive mode, an attacker must initiate a real key negotiation session.
This vulnerability can lead to remote code execution in the context of the VPN-1 process. This can lead to a complete system compromise.
Check Point has released an advisory and fixes for this issue.
Exploit / POC
Check Point VPN-1 ASN.1 Buffer Overflow Vulnerability
Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Solution / Fix
Check Point VPN-1 ASN.1 Buffer Overflow Vulnerability
Solution:
The vendor has released fixes to address this vulnerability in affected products, please see the referenced CheckPoint advisory (ASN.1 Alert) for further details regarding obtaining and applying appropriate updates.
Solution:
The vendor has released fixes to address this vulnerability in affected products, please see the referenced CheckPoint advisory (ASN.1 Alert) for further details regarding obtaining and applying appropriate updates.
References
Check Point VPN-1 ASN.1 Buffer Overflow Vulnerability
References:
References:
- ASN.1 Alert (Check Point Software)
- Check Point Technical Support (Check Point Software)
- Check Point VPN-1 ASN.1 Decoding Remote Compromise (Internet Security Systems)