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Vulnerability RegGo.dll Affected TrendMicro InterScan WebManager Version 1.2 Description Following is based on a SNS Advisory No.33. Trend Micro InterScan WebManager is a software which provides malicious mobile code protection, URL filtering and traffic management. A buffer overflow vulnerability exists in RegGo.dll which is used as web management console feature in InterScan WebManager version 1.2. This problem can allow remote users to execute arbitrary commands with SYSTEM privilege. InterScan WebManager has a feature which provides management web console. RegGo.dll which is used for this feature has a buffer overflow vulnerability when long parameter was given. A buffer overflow occurs with the following dump: 00F0FC6C 42 42 42 42 BBBB 00F0FC70 43 43 43 43 CCCC 00F0FC74 44 44 44 44 DDDD 00F0FC78 45 45 45 45 EEEE EAX = 00F0FC6C EIP = 41414141 Therefore, arbitrary code which is addressed 00F0FC6C may be executed by calling eax. This has been discovered by Arai Yuu. Solution No patches are available at this momen. Trend Micro support team responded that this problem would be fixed on next version of WebManager. But they didn't provide any further information in detail. Until the patch is released, restrict access to refuse access to servers which WebManager had installed.