Preemptive Protection against EMC VMware Workstation DHCP Service Integer Underflow Vulnerability
| Check Point Reference: | CPAI-2007-118 | |
| Date Published: | ||
| Severity: | ||
| Source: | Secunia Advisory: SA26890 | |
| Industry Reference(s): | CVE-2007-0063 | |
| Protection Provided by: |
VPN-1
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| Who is Vulnerable? EMC VMware ACE 1 prior to 1.0.4 EMC VMware ACE 2 prior to 2.0.1 EMC VMware Player 1 prior to 1.0.5 EMC VMware Player 2 prior to 2.0.1 EMC VMware Server 1 Prior to 1.0.4 EMC VMware Worstation 6 prior to 6.0.1 EMC VMware Worstation 5 prior to 5.5.5 | ||
| Vulnerability Description An integer underflow vulnerability has been reported in the VMware DHCP service. VMware Workstation is a virtualization technology that allows running multiple instances of virtual computers simultaneously with the hosting operating system. The Dynamic Host Configuration Protocol (DHCP) provides central management of IP addresses and other details related to the IP configuration used on the network. A remote user can exploit this vulnerability by sending a specially crafted DHCP request to the vulnerable DHCP server. This may result in remote code execution on the affected system. |
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Update/Patch Available Upgrade your product to the latest versions or apply patches: VMware |
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Vulnerability Details The vulnerability is due to a boundary error in the VMware DHCP service that fails to properly handle malformed DHCP requests. To trigger this issue, an attacker may create a malicious DHCP request and send it to a vulnerable server. Successful exploitation may allow execution of arbitrary code. |
Protection Overview
Users are protected against this vulnerability if the Microsoft DHCP protection addressed in CPAI-2005-07 has been applied.
By enabling this protection, SmartDefense will detect and block malformed DHCP requests. No update is required to address this vulnerability.
To configure the defense, select your product from the list below and follow the related protection steps.
VPN-1 NGX R65 & R62
How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > DHCP.
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: DHCP Protocol Enforcement Violation
Attack Information: BOOTP Packet Too Short
VPN-1 NGX R61 & R60
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > enable DHCP.
2. Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: DHCP Protocol Enforcement Violation
Attack Information: BOOTP Packet Too Short
VPN-1 NG with Application Intelligence R55
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > enable DHCP.
2. Install policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99670 will appear on the SmartView Tracker.
VPN-1 VSX NGX
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > enable DHCP.
2. Install policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99670 will appear on the SmartView Tracker.
InterSpect NGX
How Can I Protect My Network?
1. In the lefthand menu, click Profiles > Default Protection > SmartDefense. The SmartDefense page opens.
2. In the SmartDefense tree, click Application Intelligence > enable DHCP.
3. Install security policy.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: DHCP Protocol Enforcement Violation
Attack Information: BOOTP Packet Too Short
InterSpect 2.0
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > enable DHCP.
2. Install security policy.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: DHCP Protocol Enforcement Violation
Attack Information: BOOTP Packet Too Short
Connectra NGX R62 & R61
How Can I Protect My Network?
1. In the left-hand menu, click Security > SmartDefense > Application Intelligence.
2. In the Dynamic Attacks pane, select the following:
DHCP
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
Upon attack, the following entries will be logged:
Attack Name: DHCP Protocol Enforcement Violation
Attack Information: BOOTP Packet Too Short