Microsoft Windows 7/Server 2008 on 64-bit memory corruption

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4.0$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Microsoft Windows 7/Server 2008 on 64-bit. This vulnerability affects unknown code. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2012-0217. The attack can only be performed from a local environment. Furthermore, an exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows 7/Server 2008 on 64-bit (Operating System). It has been rated as problematic. This issue affects some unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, and integrity. The summary by CVE is:

The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solaris 11 and earlier; illumos before r13724; Joyent SmartOS before 20120614T184600Z; FreeBSD before 9.0-RELEASE-p3; NetBSD 6.0 Beta and earlier; Microsoft Windows Server 2008 R2 and R2 SP1 and Windows 7 Gold and SP1; and possibly other operating systems, when running on an Intel processor, incorrectly uses the sysret path in cases where a certain address is not a canonical address, which allows local users to gain privileges via a crafted application. NOTE: because this issue is due to incorrect use of the Intel specification, it should have been split into separate identifiers; however, there was some value in preserving the original mapping of the multi-codebase coordinated-disclosure effort to a single identifier.

The weakness was published 06/12/2012 by Rafal Wojtczuk and Jan Beulich with Bromium & SuSE as MS12-042 as confirmed bulletin (Microsoft Technet). The advisory is shared at technet.microsoft.com. The public release has been coordinated with Microsoft. The identification of this vulnerability is CVE-2012-0217 since 12/14/2011. An attack has to be approached locally. A simple authentication is required for exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 74682 (openSUSE Security Update : xen (openSUSE-SU-2012:0886-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370050 (Citrix XenServer Security Update (CTX133161)).

Applying the patch MS12-042 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (74682), SecurityFocus (BID 53856†), OSVDB (82850†) and Secunia (SA49454†). Similar entries are available at VDB-5523, VDB-5529, VDB-5555 and VDB-5556. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.4
VulDB Temp Score: 4.0
VulDB Vector: 🔍
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74682
Nessus Name: openSUSE Security Update : xen (openSUSE-SU-2012:0886-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 71479
OpenVAS Name: Debian Security Advisory DSA 2501-1 (xen)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
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Patch: MS12-042

Timelineinfo

12/14/2011 🔍
06/12/2012 +181 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/13/2012 +1 days 🔍
06/13/2014 +730 days 🔍
01/07/2025 +3861 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS12-042
Researcher: Rafal Wojtczuk, Jan Beulich
Organization: Bromium & SuSE
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-0217 (🔍)
GCVE (CVE): GCVE-0-2012-0217
GCVE (VulDB): GCVE-100-5525

OVAL: 🔍

CERT: 🔍
SecurityFocus: 53856 - Intel CPU Hardware Local Privilege Escalation Vulnerability
Secunia: 49454 - Microsoft Windows Kernel Two Privilege Escalation Vulnerabilities, Less Critical
OSVDB: 82850

scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍

Entryinfo

Created: 06/13/2012 17:11
Updated: 01/07/2025 20:43
Changes: 06/13/2012 17:11 (78), 05/03/2019 07:01 (3), 03/25/2021 13:13 (2), 03/25/2021 13:16 (7), 03/25/2021 13:21 (1), 07/12/2024 11:26 (17), 01/07/2025 20:43 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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