Microsoft Security Bulletin: February 3
Qualys® Vulnerability R&D Lab has released new vulnerability checks in the Qualys Cloud Platform to protect organizations against 6 vulnerabilities that were fixed in 1 bulletins announced today by Microsoft. Customers can immediately audit their networks for these and other new vulnerabilities by accessing their Qualys subscription. Visit our blog to see how to prioritize remediation.
Microsoft has released 1 security bulletins to fix newly discovered flaws in their software. Qualys has released the following checks for these new vulnerabilities:
Microsoft Internet Explorer Cumulative Security Update (MS10-035 and KB980088)
- Serious 3
- Qualys ID
- Vendor Reference
- KB980088, MS10-035
- CVE Reference
- CVE-2010-0255, CVE-2010-1257, CVE-2010-1259, CVE-2010-1260, CVE-2010-1261, CVE-2010-1262
- CVSS Scores
- Base 9.3 / Temporal 7.3
Microsoft Internet Explorer is a Web browser for Microsoft Windows.
Internet Explorer is prone to the following vulnerabilities:
An information disclosure vulnerability exists in the way that Internet Explorer caches data and incorrectly allows the cached content to be called, potentially bypassing Internet Explorer domain restriction.(CVE-2010-0255). This vulnerability was first described in Microsoft Security Advisory 980088.
An information disclosure vulnerability exists in the way that Internet Explorer handles content using specific strings when sanitizing HTML. (CVE-2010-1257)
A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has not been correctly initialized or has been deleted. (CVE-2010-1259, CVE-2010-1262)
A remote code execution vulnerability exists in the way that Internet Explorer accesses an object that has not been correctly initialized or has been deleted in the IE8 Developer Toolbar. (CVE-2010-1260, CVE-2010-1261)
Microsoft has released a security update that addresses these vulnerabilities by modifying the way that Internet Explorer handles objects in memory, HTML sanitization, and cached content. The security update is rated Critical for Internet Explorer 6 Service Pack 1 on Microsoft Windows 2000 Service Pack 4; Critical for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows clients; and Moderate for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows servers.
Windows XP Embedded Systems:- For additional information regarding security updates for embedded systems, refer to the following MSDN blog(s):
- Successful exploitation of the vulnerability results in information disclosure.
Following are links for downloading patches to fix the vulnerabilities:
For a complete list of patch download links, please refer to Microsoft Security Bulletin MS10-035.
1) Set Internet and Local intranet security zone settings to "High" to prompt before running ActiveX Controls and Active Scripting.
2) Configure Internet Explorer to prompt before running Active Scripting or to disable Active Scripting in the Internet and Local intranet security zone.
Impact of workarounds #1 and #2: On visiting Web sites on the Internet or Intranet that use ActiveX or Active Scripting to provide additional functionality, you will be prompted frequently when you enable this workaround.
3) Enable Internet Explorer Network Protocol Lockdown. Microsoft is providing a Microsoft Fix it solution to enable or disable this workaround. Refer to KB980088 for the Fix it solution.
Impact of workaround #3: File protocol will be locked down.
These new vulnerability checks are included in Qualys vulnerability signature 1.24.118-2. Each Qualys account is automatically updated with the latest vulnerability signatures as they become available. To view the vulnerability signature version in your account, from the Qualys Help menu, select the About tab.
Selective Scan Instructions Using Qualys
To perform a selective vulnerability scan, configure a scan profile to use the following options:
- Ensure access to TCP ports 135 and 139 are available.
- Enable Windows Authentication (specify Authentication Records).
Enable the following Qualys IDs:
- If you would like the scan to return the Windows Hostname, also include QID 82044 and ensure access to UDP port 137 is available.
- If you would like to be notified if Qualys is unable to log on to a host (if Authentication fails), also include QID 105015.
In addition, prior to running a scan for these new vulnerabilities, you can estimate your exposure to these new threats by running the Risk Analysis Report, available from the Qualys Vulnerability Management Reports tab.
Access for Qualys Customers
For more information, customers may contact Qualys Technical Support.
The Qualys Cloud Platform and its integrated suite of security and compliance applications provides organizations of all sizes with a global view of their security and compliance solutions, while drastically reducing their total cost of ownership. Qualys solutions include: continuous monitoring, vulnerability management, policy compliance, PCI compliance, security assessment questionnaire, web application scanning, web application firewall, malware detection and SECURE Seal for security testing of web sites.