Executive Summary

Summary
Title Vulnerability in Remote Desktop Client Could Allow Remote Code Execution (2508062)
Informations
Name MS11-017 First vendor Publication 2011-03-08
Vendor Microsoft Last vendor Modification 2011-05-04
Severity (Vendor) Important Revision 1.5

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
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Detail

Revision Note: V1.5 (May 4, 2011): Corrected the bulletin replacement information for Remote Desktop Connection 5.2 Client on supported editions of Windows XP Service Pack 3. This is a bulletin change only. There were no changes to the detection or security update files.Summary: This security update resolves a publicly disclosed vulnerability in Windows Remote Desktop Client. The vulnerability could allow remote code execution if a user opens a legitimate Remote Desktop configuration (.rdp) file located in the same network folder as a specially crafted library file. For an attack to be successful, a user must visit an untrusted remote file system location or WebDAV share and open a document from this location that is then loaded by a vulnerable application.

Original Source

Url : http://www.microsoft.com/technet/security/bulletin/MS11-017.mspx

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12480
 
Oval ID: oval:org.mitre.oval:def:12480
Title: Remote Desktop Insecure Library Loading Vulnerability
Description: Untrusted search path vulnerability in the client in Microsoft Remote Desktop Connection 5.2, 6.0, 6.1, and 7.0 allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .rdp file, aka "Remote Desktop Insecure Library Loading Vulnerability."
Family: windows Class: vulnerability
Reference(s): CVE-2011-0029
Version: 5
Platform(s): Microsoft Windows XP
Microsoft Windows Vista
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows 7
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 4
Os 1
Os 1
Os 1
Os 8
Os 2
Os 2

SAINT Exploits

Description Link
Microsoft Remote Desktop Connection Insecure Library Injection More info here

OpenVAS Exploits

Date Description
2011-03-09 Name : Microsoft Remote Desktop Client Remote Code Execution Vulnerability (2508062)
File : nvt/secpod_ms11-017.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
71014 Microsoft Windows Remote Desktop Client Path Subversion Arbitrary DLL Injecti...

Microsoft Windows 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 Remote Desktop configuration (.rdp) 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
2011-03-10 IAVM : 2011-B-0033 - Microsoft Remote Desktop Connection Client Remote Code Execution Vulnerability
Severity : Category II - VMSKEY : V0026091

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 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
2011-03-08 Name : It is possible to execute arbitrary code on the remote host through the Remot...
File : smb_nt_ms11-017.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
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3
Date Informations
2014-02-17 11:46:53
  • Multiple Updates
2014-01-19 21:30:38
  • Multiple Updates
2013-11-11 12:41:21
  • Multiple Updates
2013-05-11 00:49:47
  • Multiple Updates