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fix #12: Security Issue #14

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Merged
merged 1 commit into from
Oct 30, 2024
Merged

fix #12: Security Issue #14

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8 changes: 6 additions & 2 deletions src/Application/src/RazorPagesTestSample/Pages/Index.cshtml.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -92,9 +92,13 @@ public async Task<IActionResult> OnPostAnalyzeMessagesAsync()
return RedirectToPage();
}

public static void WriteToDirectory(ZipArchiveEntry entry, string destDirectory)
public static void WriteToDirectory(ZipArchiveEntry entry, string destDirectory)
{
string destFileName = Path.Combine(destDirectory, entry.FullName);
string destFileName = Path.GetFullPath(Path.Combine(destDirectory, entry.FullName));
string fullDestDirPath = Path.GetFullPath(destDirectory + Path.DirectorySeparatorChar);
if (!destFileName.StartsWith(fullDestDirPath)) {
throw new System.InvalidOperationException("Entry is outside the target dir: " + destFileName);
}
entry.ExtractToFile(destFileName);
}
}
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