ed0e1e4d44
1979 changes to exploits/shellcodes Couchdb 1.5.0 - 'uuids' Denial of Service Apache CouchDB 1.5.0 - 'uuids' Denial of Service Beyond Remote 2.2.5.3 - Denial of Service (PoC) udisks2 2.8.0 - Denial of Service (PoC) Termite 3.4 - Denial of Service (PoC) SoftX FTP Client 3.3 - Denial of Service (PoC) Silverstripe 2.3.5 - Cross-Site Request Forgery / Open redirection SilverStripe CMS 2.3.5 - Cross-Site Request Forgery / Open Redirection Silverstripe CMS 3.0.2 - Multiple Vulnerabilities SilverStripe CMS 3.0.2 - Multiple Vulnerabilities Silverstripe CMS 2.4 - File Renaming Security Bypass SilverStripe CMS 2.4 - File Renaming Security Bypass Silverstripe CMS 2.4.5 - Multiple Cross-Site Scripting Vulnerabilities SilverStripe CMS 2.4.5 - Multiple Cross-Site Scripting Vulnerabilities Silverstripe CMS 2.4.7 - 'install.php' PHP Code Injection SilverStripe CMS 2.4.7 - 'install.php' PHP Code Injection Silverstripe Pixlr Image Editor - 'upload.php' Arbitrary File Upload SilverStripe CMS Pixlr Image Editor - 'upload.php' Arbitrary File Upload Silverstripe CMS 2.4.x - 'BackURL' Open Redirection SilverStripe CMS 2.4.x - 'BackURL' Open Redirection Silverstripe CMS - 'MemberLoginForm.php' Information Disclosure SilverStripe CMS - 'MemberLoginForm.php' Information Disclosure Silverstripe CMS - Multiple HTML Injection Vulnerabilities SilverStripe CMS - Multiple HTML Injection Vulnerabilities Apache CouchDB 1.7.0 and 2.x before 2.1.1 - Remote Privilege Escalation Apache CouchDB 1.7.0 / 2.x < 2.1.1 - Remote Privilege Escalation Monstra CMS before 3.0.4 - Cross-Site Scripting Monstra CMS < 3.0.4 - Cross-Site Scripting (2) Monstra CMS < 3.0.4 - Cross-Site Scripting Monstra CMS < 3.0.4 - Cross-Site Scripting (1) Navigate CMS 2.8 - Cross-Site Scripting Collectric CMU 1.0 - 'lang' SQL injection Joomla! Component CW Article Attachments 1.0.6 - 'id' SQL Injection LG SuperSign EZ CMS 2.5 - Remote Code Execution MyBB Visual Editor 1.8.18 - Cross-Site Scripting Joomla! Component AMGallery 1.2.3 - 'filter_category_id' SQL Injection Joomla! Component Micro Deal Factory 2.4.0 - 'id' SQL Injection RICOH Aficio MP 301 Printer - Cross-Site Scripting Joomla! Component Auction Factory 4.5.5 - 'filter_order' SQL Injection RICOH MP C6003 Printer - Cross-Site Scripting Linux/ARM - Egghunter (PWN!) + execve(_/bin/sh__ NULL_ NULL) Shellcode (28 Bytes) Linux/ARM - sigaction() Based Egghunter (PWN!) + execve(_/bin/sh__ NULL_ NULL) Shellcode (52 Bytes)
55 lines
No EOL
2.9 KiB
Text
55 lines
No EOL
2.9 KiB
Text
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=821
|
|
|
|
A major component of the Symantec Antivirus scan engine is the "Decomposer", responsible for unpacking various archive formats such as ZIP, RAR, and so on. The decomposer runs as NT AUTHORITY\SYSTEM on Windows, and root on Linux and Mac. Simple fuzzing of zip archives discovered missing bounds checks in the routine ALPkOldFormatDecompressor::UnShrink, used to decode Zip archives.
|
|
|
|
The routine uses a 16bit value read from the file to index a 256 element array without any bounds checking, the attached testcase should demonstrate this reliably. I have verified this on the following products:
|
|
|
|
Norton Antivirus, Windows
|
|
Symantec Endpoint Protection, Linux and Windows
|
|
Symantec Scan Engine, Linux and Windows
|
|
|
|
|
|
(534.700): Access violation - code c0000005 (!!! second chance !!!)
|
|
eax=00003000 ebx=00003000 ecx=00003000 edx=00002000 esi=16adeb58 edi=16ad8b1b
|
|
eip=6ba47ec3 esp=16ad6af0 ebp=16adeb20 iopl=0 nv up ei pl nz na pe nc
|
|
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010206
|
|
ccScanw!filelengthi64+0x3af63:
|
|
6ba47ec3 66399445fcbfffff cmp word ptr [ebp+eax*2-4004h],dx ss:002b:16ae0b1c=????
|
|
0:071> ub
|
|
ccScanw!filelengthi64+0x3af3f:
|
|
6ba47e9f 8bb5ec7fffff mov esi,dword ptr [ebp-8014h]
|
|
6ba47ea5 8bc7 mov eax,edi
|
|
6ba47ea7 8985e07fffff mov dword ptr [ebp-8020h],eax
|
|
6ba47ead e96d010000 jmp ccScanw!filelengthi64+0x3b0bf (6ba4801f)
|
|
6ba47eb2 0fbfc3 movsx eax,bx
|
|
6ba47eb5 ba00200000 mov edx,2000h
|
|
6ba47eba 8dbdfb9fffff lea edi,[ebp-6005h]
|
|
6ba47ec0 0fb7cb movzx ecx,bx
|
|
0:071> lmv m ccScanw
|
|
start end module name
|
|
6b930000 6bb5f000 ccScanw (export symbols) C:\Program Files (x86)\Norton Security\Engine\22.6.0.142\ccScanw.dll
|
|
Loaded symbol image file: C:\Program Files (x86)\Norton Security\Engine\22.6.0.142\ccScanw.dll
|
|
Image path: C:\Program Files (x86)\Norton Security\Engine\22.6.0.142\ccScanw.dll
|
|
Image name: ccScanw.dll
|
|
Timestamp: Tue Jan 26 13:51:55 2016 (56A7EA7B)
|
|
CheckSum: 0022B3ED
|
|
ImageSize: 0022F000
|
|
File version: 13.1.2.19
|
|
Product version: 13.1.2.19
|
|
File flags: 0 (Mask 3F)
|
|
File OS: 40004 NT Win32
|
|
File type: 1.0 App
|
|
File date: 00000000.00000000
|
|
Translations: 0409.04b0
|
|
CompanyName: Symantec Corporation
|
|
ProductName: Symantec Security Technologies
|
|
InternalName: ccScan
|
|
OriginalFilename: CCSCAN.DLL
|
|
ProductVersion: 13.1.2.19
|
|
FileVersion: 13.1.2.19
|
|
FileDescription: Symantec Scan Engine
|
|
LegalCopyright: Copyright (c) 2015 Symantec Corporation. All rights reserved.
|
|
|
|
|
|
Proof of Concept:
|
|
https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/40036.zip |