Microsoft Security Bulletin: January 2008 Security Bulletin

January 8, 2008 - Qualys^® Vulnerability R&D Lab has released new vulnerability checks in QualysGuard^® to protect organizations against the 2 new vulnerabilities present in Microsoft Windows that were announced today. Customers can immediately audit their networks for these and other new vulnerabilities by accessing their QualysGuard subscription.

Microsoft has released 2 security patches to fix 3 newly discovered flaws in Microsoft Windows.

Qualys has released the following checks for these new vulnerabilities:

Vulnerabilities in Windows TCP/IP Could Allow Remote Code Execution
SEVERITY: Urgent  5
QUALYS ID: 90423
VENDOR REFERENCE: MS08-001, 941644
CVE REFERENCE: CVE-2007-0069, CVE-2007-0066
CVSS SCORES: Base 9.3/ Temporal 7.3
THREAT: TCP/IP is the suite of communications protocols used for transmitting data over networks. A remote code execution issue exists due to the Windows kernel performs insufficient validation when storing the state of IGMP requests processed by TCP/IP. Internet Group Management Protocol (IGMP) is used for IPv4 multicast and is used to exchange membership status data between IPv4 routers that support multicasting and members of multicast groups.
IMPACT: An attacker who successfully exploits this vulnerability could take complete control of the affected system.
SOLUTION: Refer to Microsoft Security Bulletin MS08-001 to address this issue. Microsoft has rated this issue as Critical.

LSASS Could Allow Local Elevation of Privilege
SEVERITY: Serious  3
QUALYS ID: 90422
VENDOR REFERENCE: MS08-002, 943485
CVE REFERENCE: CVE-2007-5352
CVSS SCORES: Base 7.5/ Temporal 5.9
THREAT: Microsoft Windows Local Security Authority Subsystem Service (LSASS) provides an interface for managing local security, domain authentication, and Active Directory service processes. It handles authentication for the client and for the server. LSASS is vulnerable to an elevation of privilege issue due to its improper handling of local procedure call (LPC) requests.
IMPACT: An attacker who successfully exploited this vulnerability could gain complete control over the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights.
SOLUTION: Refer to Microsoft Security Bulletin MS08-002 for further details on this vulnerability and patch instructions. Microsoft has rated this issue as Important.

This new vulnerability check is included in Qualys vulnerability signatures v1.19.35-4. Each QualysGuard account is automatically updated with the latest vulnerability signatures as they become available. To view the vulnerability signature version in your account, from the QualysGuard HOME menu, select the Account Info tab.

SELECTIVE SCAN INSTRUCTIONS USING QUALYSGUARD:

To perform a selective vulnerability scan, configure a scan profile to use the following options:

1. Ensure access to TCP ports 135 and 139 are available.
2. Enable Windows Authentication (specify Authentication Records).
3. Enable the following Qualys IDs:
   • 90423
   • 90422
4. If you would like the scan to return the Windows Hostname, also include QID 82044 and ensure access to UDP port 137 is available.
5. If you would like to be notified if QualysGuard is unable to logon 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 Matrix Report, available from the QualysGuard HOME page.

For more information, customers may contact Qualys Technical Support directly at support@qualys.com or by telephone toll free at:
US: 1 866.801.6161 | EMEA: 33 1 44.17.00.41 | UK: +44 1753 872102

QualysGuard is an on-demand security audit service delivered over the web that enables organizations to effectively manage their vulnerabilities and maintain control over their network security with centralized reports, verified remedies, and full remediation workflow capabilities with trouble tickets. QualysGuard provides comprehensive reports on vulnerabilities including severity levels, time to fix estimates and impact on business, plus trend analysis on security issues. By continuously and proactively monitoring all network access points, QualysGuard dramatically reduces security managers' time researching, scanning and fixing network exposures and enables companies to eliminate network vulnerabilities before they can be exploited.

Access for QualysGuard customers: https://qualysguard.qualys.com

Free trial of QualysGuard service: http://www.qualys.com/solutions/free/trials