Executive Summary

Summary
Title Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2587634)
Informations
Name MS11-073 First vendor Publication 2011-09-13
Vendor Microsoft Last vendor Modification 2011-09-13
Severity (Vendor) Important Revision 1.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Severity Rating: Important

Revision Note: V1.0 (September 13, 2011): Bulletin published.

Summary: This security update resolves two privately reported vulnerabilities in Microsoft Office. The vulnerabilities could allow remote code execution if a user opens a specially crafted Office file or if a user opens a legitimate Office file that is located in the same network directory as a specially crafted library file. An attacker who successfully exploited either of the vulnerabilities could gain the same user rights as the logged on user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Original Source

Url : http://technet.microsoft.com/en-us/security/bulletin/ms11-073

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12243
 
Oval ID: oval:org.mitre.oval:def:12243
Title: Office Uninitialized Object Pointer Vulnerability
Description: Microsoft Office 2007 SP2, and 2010 Gold and SP1, does not initialize an unspecified object pointer during the opening of Word documents, which allows remote attackers to execute arbitrary code via a crafted document, aka "Office Uninitialized Object Pointer Vulnerability."
Family: windows Class: vulnerability
Reference(s): CVE-2011-1982
Version: 8
Platform(s): Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Vista
Microsoft Windows Server 2008
Microsoft Windows 7
Product(s): Microsoft Office 2007
Microsoft Office 2010
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:12694
 
Oval ID: oval:org.mitre.oval:def:12694
Title: Office Component Insecure Library Loading Vulnerability
Description: Untrusted search path vulnerability in Microsoft Office 2003 SP3 and 2007 SP2 allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .doc, .ppt, or .xls file, aka "Office Component Insecure Library Loading Vulnerability."
Family: windows Class: vulnerability
Reference(s): CVE-2011-1980
Version: 5
Platform(s): Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Vista
Microsoft Windows Server 2008
Microsoft Windows 7
Product(s): Microsoft Office 2003
Microsoft Office 2007
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 6

OpenVAS Exploits

Date Description
2011-09-14 Name : Microsoft Office Remote Code Execution Vulnerabilites (2587634)
File : nvt/secpod_ms11-073.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
75380 Microsoft Office MSO.dll Object Pointer Dereference Word Document Handling Re...

75379 Microsoft Office MSO.dll Path Subversion Arbitrary DLL Injection Code Execution

Microsoft Office is prone to a flaw in the way it loads dynamic-link libraries (DLL). The program uses a fixed path to look for specific files or libraries. This path includes directories that may not be trusted or under user control. By placing a custom version of the file or library in the path, the program will load it before the legitimate version. This allows an attacker to inject custom code that will be run with the privilege of the program or user executing the program. This can be done by tricking a user into opening a .PPT file from the local file system or a USB drive in some cases. This attack can be leveraged remotely in some cases by placing the malicious file or library on a network share or extracted archive downloaded from a remote source.

Information Assurance Vulnerability Management (IAVM)

Date Description
2011-09-15 IAVM : 2011-A-0125 - Multiple Vulnerabilities in Microsoft Office
Severity : Category II - VMSKEY : V0030246

Snort® IPS/IDS

Date Description
2014-01-10 Microsoft product fputlsat.dll dll-load exploit attempt
RuleID : 21310 - Revision : 7 - Type : OS-WINDOWS
2014-01-10 Microsoft product request for fputlsat.dll over SMB attempt
RuleID : 21309 - Revision : 7 - Type : OS-WINDOWS
2014-01-10 Microsoft Office BpscBulletProof uninitialized pointer dereference attempt
RuleID : 20129 - Revision : 9 - Type : FILE-OFFICE
2014-01-10 Microsoft product .dll dll-load exploit attempt
RuleID : 18495 - Revision : 21 - Type : OS-WINDOWS
2014-01-10 Microsoft product .dll dll-load exploit attempt
RuleID : 18494 - Revision : 25 - Type : OS-WINDOWS

Nessus® Vulnerability Scanner

Date Description
2011-09-14 Name : The remote Windows host is affected by a code execution vulnerability.
File : smb_nt_ms11-071.nasl - Type : ACT_GATHER_INFO
2011-09-14 Name : Arbitrary code can be executed on the remote host through Microsoft Office.
File : smb_nt_ms11-073.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2016-04-26 23:04:36
  • Multiple Updates
2014-02-17 11:47:06
  • Multiple Updates
2014-01-19 21:30:44
  • Multiple Updates
2013-11-11 12:41:25
  • Multiple Updates
2013-05-11 00:49:53
  • Multiple Updates