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Return STATUS_ACCESS_DENIED when writing to file that was opened for reading and vice versa

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This commit is contained in:
Tal Aloni 2017-01-22 22:26:14 +02:00
parent 1679629b47
commit ee55b59a2f
1 changed files with 2 additions and 2 deletions
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4
SMBLibrary/Server/Helpers/NTFileSystemHelper.cs
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@ -274,7 +274,7 @@ namespace SMBLibrary.Server
} }
else // File else // File
{ {
if (stream == null) if (stream == null || !stream.CanRead)
{ {
state.LogToServer(Severity.Debug, "ReadFile: Cannot read '{0}', Invalid Operation.", openFilePath); state.LogToServer(Severity.Debug, "ReadFile: Cannot read '{0}', Invalid Operation.", openFilePath);
return NTStatus.STATUS_ACCESS_DENIED; return NTStatus.STATUS_ACCESS_DENIED;
@ -335,7 +335,7 @@ namespace SMBLibrary.Server
} }
else // File else // File
{ {
if (stream == null) if (stream == null || !stream.CanWrite)
{ {
state.LogToServer(Severity.Debug, "WriteFile: Cannot write '{0}'. Invalid Operation.", openFilePath); state.LogToServer(Severity.Debug, "WriteFile: Cannot write '{0}'. Invalid Operation.", openFilePath);
return NTStatus.STATUS_ACCESS_DENIED; return NTStatus.STATUS_ACCESS_DENIED;