Update Protection against Microsoft Excel Workspace Memory Corruption Vulnerability (MS07-044)
| Check Point Reference: | CPAI-2007-101 | |
| Date Published: | ||
| Severity: | ||
| Source: | Microsoft Security Bulletin MS07-044 | |
| Industry Reference(s): | CVE-2007-3890 | |
| Protection Provided by: |
VPN-1
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| Who is Vulnerable? Microsoft Excel 2000 Microsoft Excel 2002 Microsoft Excel 2003 Microsoft Excel 2004 for Mac Microsoft Excel Viewer 2003 Microsoft Office 2000 Microsoft Office XP Microsoft Office 2003 Microsoft Office 2004 for Mac | ||
| Vulnerability Description A memory corruption vulnerability has been identified in Microsoft Excel. Microsoft Excel is a popular spreadsheet application. A remote attacker could exploit this issue via a malformed Excel file. Successful exploitation of these vulnerabilities may allow execution of arbitrary code on a target system. |
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Update/Patch Available Apply patches: Microsoft Security Bulletin MS07-044 |
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Vulnerability Details The vulnerability is due to a memory corruption error in Microsoft Excel that fails to properly handle malformed Excel files. An attacker can exploit this flaw to take complete control over a vulnerable system via a specially crafted Excel file. |
Protection Overview
By enabling this protection, SmartDefense will detect and block the transferring of malformed Excel files over HTTP.
In order for the protection to be activated, update your VPN-1/InterSpect product to the latest SmartDefense update. For information on how to update SmartDefense, go to SBP-2006-05, Protection tab and select the version of your choice.
To configure the defense, select your product from the list below and follow the related protection steps.
Additional Information
The Update released on August 29, 2007 includes the following protections:
Microsoft Internet Explorer ActiveX Object IObjectsafety Implementation Vulnerability (MS07-045) CPAI-2007-099
Microsoft Internet Explorer ActiveX Object Memory Corruption Vulnerability (MS07-045) CPAI-2007-100
Microsoft Excel Workspace Memory Corruption Vulnerability (MS07-044) CPAI-2007-101
Microsoft Windows Media Player Skin Parsing Code Execution Vulnerability (MS07-047) CPAI-2007-102
VPN-1 NGX R65 & R62
How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > Content Protection.
2. Select the following:
Block Malformed Excel Files (MS07-044)
3. In the configuration pane, under Settings > Mode, check Active.
4. Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Content Protection Violation
Attack Information: Malformed Excel file detected (MS07-044)
VPN-1 NGX R61 & R60
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > Content Protection.
2. Select the following:
Block Malformed Excel Files (MS07-044)
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: Content Protection Violation
Attack Information: Malformed Excel file detected (MS07-044)
VPN-1 NG with Application Intelligence R55
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > Content Protection.
2. Select the following:
Block Malformed Excel Files (MS07-044)
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99917 will appear on the SmartView Tracker.
VPN-1 VSX NGX
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > Content Protection.
2. Select the following:
Block Malformed Excel Files (MS07-044)
3. Install policy on all modules.
How Do I Know if My Network is Under Attack?
Rule #99917 will appear on the SmartView Tracker.
InterSpect NGX
How Can I Protect My Network?
1. In the left pane, select Profiles > Default Protection and select the SmartDefense page of the profile.
2. In the SmartDefense tree, click Application Intelligence > Content Protection.
3. Select the following protection:
Block Malformed Excel Files (MS07-044)
4. Install security policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Content Protection Violation
Attack Information: Malformed Excel file detected (MS07-044)
InterSpect 2.0
How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > Content Protection.
2. Select the following protection:
Block Malformed Excel Files (MS07-044)
3. Install security policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Content Protection Violation
Attack Information: Malformed Excel file detected (MS07-044)