Vulnerabilities > CVE-2010-0023 - Permissions, Privileges, and Access Controls vulnerability in Microsoft Windows 2000, Windows 2003 Server and Windows XP
Attack vector
LOCAL Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
The Client/Server Run-time Subsystem (CSRSS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 does not properly kill processes after a logout, which allows local users to obtain sensitive information or gain privileges via a crafted application that continues to execute throughout the logout of one user and the login session of the next user, aka "CSRSS Local Privilege Elevation Vulnerability."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 7 |
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.
Msbulletin
| bulletin_id | MS10-011 |
| bulletin_url | |
| date | 2010-02-09T00:00:00 |
| impact | Elevation of Privilege |
| knowledgebase_id | 978037 |
| knowledgebase_url | |
| severity | Important |
| title | Vulnerability in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege |
Nessus
| NASL family | Windows : Microsoft Bulletins |
| NASL id | SMB_NT_MS10-011.NASL |
| description | The remote host allows elevation of privileges in its Windows Client/Server run-time subsystem (CSRSS) because of a failure to properly terminate user processes when a user logs out. An attacker might exploit this to run arbitrary code in kernel mode. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 44421 |
| published | 2010-02-09 |
| reporter | This script is Copyright (C) 2010-2018 Tenable Network Security, Inc. |
| source | https://www.tenable.com/plugins/nessus/44421 |
| title | MS10-011: Vulnerability in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege (978037) |
| code | |
Oval
| accepted | 2010-03-22T04:00:08.964-04:00 | ||||||||||||||||||||||||||||
| class | vulnerability | ||||||||||||||||||||||||||||
| contributors |
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| definition_extensions |
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| description | The Client/Server Run-time Subsystem (CSRSS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 does not properly kill processes after a logout, which allows local users to obtain sensitive information or gain privileges via a crafted application that continues to execute throughout the logout of one user and the login session of the next user, aka "CSRSS Local Privilege Elevation Vulnerability." | ||||||||||||||||||||||||||||
| family | windows | ||||||||||||||||||||||||||||
| id | oval:org.mitre.oval:def:8304 | ||||||||||||||||||||||||||||
| status | accepted | ||||||||||||||||||||||||||||
| submitted | 2010-02-08T13:00:00 | ||||||||||||||||||||||||||||
| title | CSRSS Local Privilege Elevation Vulnerability | ||||||||||||||||||||||||||||
| version | 69 |
Seebug
| bulletinFamily | exploit |
| description | BUGTRAQ ID: 38098 CVE ID: CVE-2010-0023 Microsoft Windows是微软发布的非常流行的操作系统。 当用户注销时Windows客户端/服务器运行时环境子系统（CSRSS）没有正确的终止用户进程，这可能允许本地用户以其他用户的权限执行任意代码。 如果要利用这个漏洞，攻击者首先要登录到系统，之后启动在注销后仍可继续运行的应用程序。当新的用户以自己的凭据登录后，攻击者的进程就可以监控新登录用户所执行的所有操作。如果该用户为管理员，攻击者就可以利用监控到的信息进一步入侵系统。 Microsoft Windows XP SP3 Microsoft Windows XP SP2 Microsoft Windows Server 2003 SP2 Microsoft Windows 2000SP4 厂商补丁： Microsoft --------- Microsoft已经为此发布了一个安全公告（MS10-011）以及相应补丁: MS10-011：Vulnerability in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege (978037) 链接：http://www.microsoft.com/technet/security/Bulletin/MS10-011.mspx?pf=true |
| id | SSV:19154 |
| last seen | 2017-11-19 |
| modified | 2010-02-20 |
| published | 2010-02-20 |
| reporter | Root |
| title | Microsoft Windows CSRSS本地权限提升漏洞（MS10-011） |