Vulnerability: MS10-048 - Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2160329)
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| Details | |
|---|---|
| Vulnerability name/brief description | MS10-048 - Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2160329) |
| CVE/CAN name | CVE-2010-1887 CVE-2010-1894 CVE-2010-1895 CVE-2010-1896 CVE-2010-1897 |
| Vendor threat level | Important |
| SophosLabs threat level | Low |
| Solution | |
| Vendor description | This security update resolves one publicly disclosed and four privately reported vulnerabilities in the Windows kernel-mode drivers. The most severe of these vulnerabilities could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users. |
| SophosLabs comments | The 5 vulnerabilities resolved by this security update comprise the following: 1. CVE-2010-1887 - This is a denial of service vulnerability and it exists due to Windows kernel-mode drivers improperly validating an argument that was passed to a system call. An attacker could exploit the vulnerability by running a specially crafted application causing the system to become unresponsive and automatically restart. In order to exploit this vulnerablity, the attacker must have valid logon credentials and must have local access to the targetted system. 2. CVE-2010-1894 - This is an elevation of privilege vulnerability and it exists due to the way the Windows kernel-mode drivers handle some exceptions. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. This vulnerability cannot be exploited remotely and the attacker must have local access rights to the targetted system. 3. CVE-2010-1895 - This is another elevation of privilege vulnerability. This vulnerability exists due to Windows kernel-mode drivers improperly allocating memory when making a copy from user mode. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. This vulnerability cannot be exploited remotely and the attacker must have local access rights to the targetted system. 4. CVE-2010-1896 - This is also another elevation of privilege vulnerability. It exists in Windows kernel-mode drivers due to improper validation of input passed from user mode. As this vulnerability cannot be exploited by a remote attack, the attack must be granted local access rights to the targetted system. 5. CVE-2010-1897 - This last vulnerability is also another elevation of privilege vulnerability. The vulnerability exists due to improper parameter validation when Windows kernel-mode drivers are creating a new window. While an attacker who successfully exploited this vulnerability could run arbitrary code, its effect is mitigated because it cannot be exploited remotely. |
| SophosLabs testing result | N/A |
| Currently known exploits | At the time of writing SophosLabs have not observed any malware attempting to exploit this vulnerability. Should this situation change samples will be analyzed and we will take action as necessary. |
| First sample seen | N/A |
| Discovery date | August 10, 2010 |
| Affected software | Windows XP Service Pack 3 Windows XP Professional x64 Edition Service Pack 2 Windows Server 2003 Service Pack 2 Elevation of Privilege Windows Server 2003 x64 Edition Service Pack 2 Windows Server 2003 with SP2 for Itanium-based Systems Windows Vista Service Pack 1 and Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2* Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2* Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 Windows 7 for 32-bit Systems Windows 7 for x64-based Systems Windows Server 2008 R2 for x64-based Systems* Windows Server 2008 R2 for Itanium-based Systems *Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. |
| References | http://www.microsoft.com/technet/security/bulletin/MS10-048.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1887 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1894 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1895 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1896 http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2010-1897 |
| Credits | Microsoft MAPP |
| Revisions | August 10, 2010 - Initial analysis written |
Explanation of terms
Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.
CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.
Vendor Threat Level:
Threat level assigned by the vendor
SophosLabs Threat Level:
Threat level assigned by SophosLabs
- LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
- MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
- HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
- CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.
Solution:
Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.
Vendor Description:
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SophosLabs Comments:
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SophosLabs Testing Result:
Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.
Currently Known Exploits:
List of identities for known exploits, if applicable.
First Sample Seen:
Date of the first sample seen by SophosLabs.
Discovery Date:
Date of the earliest known publically disclosed advisory.
Affected Software:
Vulnerable platforms and software versions.
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- Article ID: 111714
- Created: 10 Aug 2010
- Last updated: 10 Sep 2010
