Vulnerabilities > CVE-2008-1448 - Permissions, Privileges, and Access Controls vulnerability in Microsoft Outlook Express and Windows Mail
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
NONE Availability impact
NONE Summary
The MHTML protocol handler in a component of Microsoft Outlook Express 5.5 SP2 and 6 through SP1, and Windows Mail, does not assign the correct Internet Explorer Security Zone to UNC share pathnames, which allows remote attackers to bypass intended access restrictions and read arbitrary files via an mhtml: URI in conjunction with a redirection, aka "URL Parsing Cross-Domain Information Disclosure Vulnerability."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 |
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.
Nessus
| NASL family | Windows : Microsoft Bulletins |
| NASL id | SMB_NT_MS08-048.NASL |
| description | The remote host is running a version of Microsoft Outlook Express which contains a flaw that might be used to cause an information disclosure. To exploit this flaw, an attacker would need to send a malformed email to a victim on the remote host and have him open it. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 33877 |
| published | 2008-08-13 |
| reporter | This script is Copyright (C) 2008-2018 Tenable Network Security, Inc. |
| source | https://www.tenable.com/plugins/nessus/33877 |
| title | MS08-048: Security Update for Outlook Express and Windows Mail (951066) |
| code | |
Oval
| accepted | 2014-08-18T04:06:04.051-04:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| class | vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| contributors |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| definition_extensions |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| description | The MHTML protocol handler in a component of Microsoft Outlook Express 5.5 SP2 and 6 through SP1, and Windows Mail, does not assign the correct Internet Explorer Security Zone to UNC share pathnames, which allows remote attackers to bypass intended access restrictions and read arbitrary files via an mhtml: URI in conjunction with a redirection, aka "URL Parsing Cross-Domain Information Disclosure Vulnerability." | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| family | windows | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| id | oval:org.mitre.oval:def:5886 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| status | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| submitted | 2008-08-13T09:28:00 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| title | URL Parsing Cross-Domain Information Disclosure Vulnerability | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| version | 76 |
Seebug
| bulletinFamily | exploit |
| description | BUGTRAQ ID: 30585 CVE(CAN) ID: CVE-2008-1448 Internet Explorer是微软操作系统中默认捆绑的WEB浏览器。 IE的MHTML协议处理器没有正确地解释MHTML URI重新定向。如果以UNC的形式指定了URI的话，则没有正确的应用安全策略： \\MACHINE_NAME_OR_IP\PATH_TO_RESOURCE 在这种情况下当远程站点试图访问本地资源时，Internet Explorer会无法强制区提升限制；在浏览远程站点的时候Internet Explorer会无法应用正确地安全区权限，允许将属于较小权限区的站点处理为更高权限的区。 由于Outlook Express和Windows Mail提供了有漏洞的功能，因此Microsoft报告这些程序也受漏洞影响。 Microsoft Internet Explorer 7.0 Microsoft Internet Explorer 6.0 SP1 Microsoft Internet Explorer 6.0 Microsoft Outlook Express 6.0 SP1 Microsoft Outlook Express 6.0 Microsoft Outlook Express 5.5 SP2 Microsoft Windows Mail 临时解决方法： * 锁定MHTML协议处理程序。将以下文本粘贴到记事本等文本编辑器中，然后使用.reg文件扩展名保存文件。 Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_PROTOCOL_LOCKDOWN] "explorer.exe"=dword:00000001 "iexplore.exe"=dword:00000001 "*"=dword:00000001 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\RestrictedProtocols] [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\RestrictedProtocols\1] "mhtml"="mhtml" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\RestrictedProtocols\2] "mhtml"="mhtml" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\RestrictedProtocols\3] "mhtml"="mhtml" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\RestrictedProtocols\4] "mhtml"="mhtml" * 禁用MHTML协议处理程序。请按照下列步骤执行操作： 1. 单击“开始”，然后单击“运行 ”。在文本框中输入regedit.exe，然后单击“确定”。 2. 导航到HKEY_CLASSES_ROOT\CLSID\{05300401-BCBC-11d0-85E3-00C04FD85AB4}。 3. 右键单击{05300401-BCBC-11d0-85E3-00C04FD85AB4}，然后选择“权限”。 4. 单击“高级”。 5. 清除选择“允许将来自父级的可继承权限传播给该对象…” 6. 单击“删除”，然后单击“确定”。在后续屏幕上单击“是”和“确定”。 * 将Internet 和本地Intranet安全区域设置设为“高”，以便在这些区域中运行活动脚本之前进行提示。 厂商补丁： Microsoft --------- Microsoft已经为此发布了一个安全公告（MS08-048）以及相应补丁: MS08-048：Security Update for Outlook Express and Windows Mail (951066) 链接：<a href=http://www.microsoft.com/technet/security/Bulletin/MS08-048.mspx?pf=true target=_blank>http://www.microsoft.com/technet/security/Bulletin/MS08-048.mspx?pf=true</a> |
| id | SSV:3849 |
| last seen | 2017-11-19 |
| modified | 2008-08-15 |
| published | 2008-08-15 |
| reporter | Root |
| source | https://www.seebug.org/vuldb/ssvid-3849 |
| title | Microsoft IE MHTML协议处理器跨域信息泄露漏洞（MS08-048） |
References
- http://marc.info/?l=bugtraq&m=121915960406986&w=2
- http://secunia.com/advisories/31415
- http://www.coresecurity.com/content/internet-explorer-zone-elevation
- http://www.securityfocus.com/archive/1/495458/100/0/threaded
- http://www.securityfocus.com/bid/30585
- http://www.securitytracker.com/id?1020679
- http://www.securitytracker.com/id?1020680
- http://www.us-cert.gov/cas/techalerts/TA08-225A.html
- http://www.vupen.com/english/advisories/2008/2352
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-048
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5886