Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Published: 2012-06-12
Updated: 2018-10-12
Summary
Untrusted search path vulnerability in Microsoft Lync 2010, 2010 Attendee, and 2010 Attendant allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .ocsmeet file, aka "Lync Insecure Library Loading Vulnerability." Per: http://technet.microsoft.com/en-us/security/bulletin/ms12-039 AV:N per "How could an attacker exploit the vulnerability? An attacker could convince a user to open a legitimate Microsoft Lync related file (such as an .ocsmeet file) that is located in the same network directory as a specially crafted dynamic link library (DLL) file. Then, while opening the legitimate file, Microsoft Lync could attempt to load the DLL file and execute any code it contained. In an email attack scenario, an attacker could exploit the vulnerability by sending a legitimate Microsoft Lync-related file (such as an .ocsmeet file) to a user, and convincing the user to place the attachment into a directory that contains a specially crafted DLL file and to open the legitimate file. Then, while opening the legitimate file, Microsoft Lync could attempt to load the DLL file and execute any code it contained. In a network attack scenario, an attacker could place a legitimate Microsoft Lync-related file and a specially crafted DLL in a network share, a UNC, or WebDAV location and then convince the user to open the file." Per: http://cwe.mitre.org/data/definitions/426.html 'CWE-426: Untrusted Search Path'
Vulnerable Configurations
Part | Description | Count |
Application | Microsoft | 5 |
Nessus
NASL family | Windows : Microsoft Bulletins |
NASL id | SMB_NT_MS12-039.NASL |
description | The remote Windows host is potentially affected by the following vulnerabilities : - Multiple code execution vulnerabilities exist in the handling of specially crafted TrueType font files. (CVE-2011-3402, CVE-2012-0159) - An insecure library loading vulnerability exists in the way that Microsoft Lync handles the loading of DLL files. (CVE-2012-1849) - An HTML sanitization vulnerability exists in the way that HTML is filtered. (CVE-2012-1858) |
last seen | 2020-06-01 |
modified | 2020-06-02 |
plugin id | 59457 |
published | 2012-06-13 |
reporter | This script is Copyright (C) 2012-2018 Tenable Network Security, Inc. |
source | https://www.tenable.com/plugins/nessus/59457 |
title | MS12-039: Vulnerabilities in Lync Could Allow Remote Code Execution (2707956) |
Oval
accepted | 2014-08-18T04:01:09.686-04:00 |
class | vulnerability |
contributors | name | SecPod Team | organization | SecPod Technologies |
name | Evgeniy Pavlov | organization | ALTX-SOFT |
|
definition_extensions | comment | Microsoft Lync 2010 is installed | oval | oval:org.mitre.oval:def:15099 |
comment | Microsoft Lync 2010 Attendee (user level install) is installed | oval | oval:org.mitre.oval:def:15641 |
comment | Microsoft Lync 2010 Attendee (admin level install) is installed | oval | oval:org.mitre.oval:def:15556 |
comment | Microsoft Lync 2010 Attendant is installed | oval | oval:org.mitre.oval:def:15600 |
|
description | Untrusted search path vulnerability in Microsoft Lync 2010, 2010 Attendee, and 2010 Attendant allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .ocsmeet file, aka "Lync Insecure Library Loading Vulnerability." |
family | windows |
id | oval:org.mitre.oval:def:14874 |
status | accepted |
submitted | 2012-06-18T15:13:15 |
title | Lync Insecure Library Loading Vulnerability (CVE-2012-1849) |
version | 13 |