Vulnerabilities > CVE-2011-1984 - Permissions, Privileges, and Access Controls vulnerability in Microsoft products
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
WINS in Microsoft Windows Server 2003 SP2 and Server 2008 SP2, R2, and R2 SP1 allows local users to gain privileges by sending crafted packets over the loopback interface, aka "WINS Local Elevation of Privilege Vulnerability."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 6 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Accessing, Modifying or Executing Executable Files An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
- Leverage Executable Code in Non-Executable Files An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
- Blue Boxing This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
- Restful Privilege Elevation Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
- Target Programs with Elevated Privileges This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
Exploit-Db
| description | Microsoft WINS ECommEndDlg Input Validation Error. CVE-2011-1984. Dos exploit for windows platform |
| id | EDB-ID:17831 |
| last seen | 2016-02-02 |
| modified | 2011-09-13 |
| published | 2011-09-13 |
| reporter | Core Security |
| source | https://www.exploit-db.com/download/17831/ |
| title | Microsoft WINS ECommEndDlg Input Validation Error |
Msbulletin
| bulletin_id | MS11-070 |
| bulletin_url | |
| date | 2011-09-13T00:00:00 |
| impact | Elevation of Privilege |
| knowledgebase_id | 2571621 |
| knowledgebase_url | |
| severity | Important |
| title | Vulnerability in WINS Could Allow Elevation of Privilege |
Nessus
| NASL family | Windows : Microsoft Bulletins |
| NASL id | SMB_NT_MS11-070.NASL |
| description | The version of WINS (Windows Internet Name Service) installed on the remote Windows host is affected by a privilege escalation vulnerability. By sending specially crafted packets to the loopback interface on an affected WINS system, a local attacker can potentially exploit this issue to execute arbitrary code and take complete control of the system. Note that WINS is not installed by default on any of the affected operating systems, although Nessus has determined it is on this host. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 56173 |
| published | 2011-09-14 |
| reporter | This script is Copyright (C) 2011-2018 Tenable Network Security, Inc. |
| source | https://www.tenable.com/plugins/nessus/56173 |
| title | MS11-070: Vulnerability in WINS Could Allow Elevation of Privilege (2571621) |
| code | |
Oval
| accepted | 2011-10-31T04:00:26.187-04:00 | ||||||||||||||||||||||||||||
| class | vulnerability | ||||||||||||||||||||||||||||
| contributors |
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| definition_extensions |
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| description | WINS in Microsoft Windows Server 2003 SP2 and Server 2008 SP2, R2, and R2 SP1 allows local users to gain privileges by sending crafted packets over the loopback interface, aka "WINS Local Elevation of Privilege Vulnerability." | ||||||||||||||||||||||||||||
| family | windows | ||||||||||||||||||||||||||||
| id | oval:org.mitre.oval:def:12634 | ||||||||||||||||||||||||||||
| status | accepted | ||||||||||||||||||||||||||||
| submitted | 2011-09-13T13:00:00 | ||||||||||||||||||||||||||||
| title | WINS Local Elevation of Privilege Vulnerability | ||||||||||||||||||||||||||||
| version | 72 |
Packetstorm
| data source | https://packetstormsecurity.com/files/download/105040/CORE-2011-0526.txt |
| id | PACKETSTORM:105040 |
| last seen | 2016-12-05 |
| published | 2011-09-13 |
| reporter | Core Security Technologies |
| source | https://packetstormsecurity.com/files/105040/Core-Security-Technologies-Advisory-2011.0526.html |
| title | Core Security Technologies Advisory 2011.0526 |
Seebug
bulletinFamily exploit description No description provided by source. id SSV:72104 last seen 2017-11-19 modified 2014-07-01 published 2014-07-01 reporter Root source https://www.seebug.org/vuldb/ssvid-72104 title MS WINS ECommEndDlg Input Validation Error bulletinFamily exploit description Bugtraq ID: 49523 CVE ID：CVE-2011-1984 Microsoft Windows是一款流行的操作系统。 Microsoft Windows WINS存在安全漏洞，如果用户在运行WINS服务，受此漏洞影响的系统上接收到特制WINS复制报文，这个漏洞可允许特权提升。攻击者必须拥有合法登录凭证，本地利用此漏洞。 恶意报文会由MS11-035中报告的ECommEndDlg函数处理，但这次函数处理的指针由攻击者控制。 向WINS服务(绑定在回路地址127.0.0.1)的动态UDP端口发送特制报文可触发此漏洞。在老的win 2003 SP系统上，动态UDP端口版定在0.0.0.0地址，允许任意代码执行。 Microsoft Windows Server 2008 Standard Edition SP2 Microsoft Windows Server 2008 Standard Edition R2 SP1 Microsoft Windows Server 2008 Standard Edition R2 Microsoft Windows Server 2008 Standard Edition Itanium Microsoft Windows Server 2008 R2 x64 SP1 Microsoft Windows Server 2008 R2 x64 0 Microsoft Windows Server 2008 for x64-based Systems SP2 Microsoft Windows Server 2008 for x64-based Systems R2 Microsoft Windows Server 2008 for x64-based Systems 0 Microsoft Windows Server 2008 for Itanium-based Systems 0 Microsoft Windows Server 2008 for 32-bit Systems SP2 Microsoft Windows Server 2008 for 32-bit Systems 0 Microsoft Windows Server 2008 Enterprise Edition SP2 Microsoft Windows Server 2008 Enterprise Edition 0 Microsoft Windows Server 2008 Datacenter Edition SP2 Microsoft Windows Server 2008 Datacenter Edition 0 Microsoft Windows Server 2003 Standard Edition SP2 Microsoft Windows Server 2003 Standard Edition SP1 Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Itanium SP2 Microsoft Windows Server 2003 Itanium SP1 Microsoft Windows Server 2003 Itanium 0 Microsoft Windows Server 2003 Enterprise x64 Edition SP2 Microsoft Windows Server 2003 Enterprise x64 Edition Microsoft Windows Server 2003 Enterprise Edition Itanium Sp2 Itanium Microsoft Windows Server 2003 Enterprise Edition Itanium SP2 Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Beta 1 Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Microsoft Windows Server 2003 Enterprise Edition Itanium 0 Microsoft Windows Server 2003 Enterprise Edition SP1 Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Datacenter x64 Edition SP2 Microsoft Windows Server 2003 Datacenter x64 Edition Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Beta 1 Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Microsoft Windows Server 2003 Datacenter Edition Itanium 0 Microsoft Windows Server 2003 Datacenter Edition SP1 Beta 1 Microsoft Windows Server 2003 Datacenter Edition SP1 Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows Server 2003 SP2 Microsoft Windows Server 2003 SP1 Microsoft Windows Server 2008 R2 厂商解决方案 目前没有详细解决方案提供： http://www.microsoft.com/ id SSV:20925 last seen 2017-11-19 modified 2011-09-13 published 2011-09-13 reporter Root source https://www.seebug.org/vuldb/ssvid-20925 title Microsoft Windows WINS Server 'ECommEndDlg()'本地特权提升漏洞