Title: Check Point Firewall-1 SMTP Resource Exhaustion Vulnerability
Severity: MODERATE
Description:
The Check Point Firewall-1 SMTP Security Server in Firewall-1 4.0 and 4.1 on Windows NT is vulnerable to a simple network-based attack which can increase the firewall's CPU utilization to 100%. Sending a stream of binary zeros (or other invalid SMTP commands) to the SMTP port on the firewall raises the target system's load to 100% while the load on the attacker's machine remains relatively low. According to Check Point Software this only disables mail relay while allowing other firewall operations to continue normally.
Affected Products:
- Check Point Software Firewall-1 4.0.0
- Check Point Software Firewall-1 4.1.0
Juniper Networks provides this content via a wide variety of sources and production methods. If notified of errors or omissions in the content of this page, Juniper Networks, at its discretion, will modify or remove the page or leave the content as is, depending on various factors including but not limited to the reputation and authority of the party providing the notification. Please use the contact information displayed elsewhere on this page to report any errors or omissions regarding the content on this page.
