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[SECURITY] Fix Temporary Directory Hijacking or Information Disclosure Vulnerability #443

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[SECURITY] Fix Temporary Directory Hijacking or Information Disclosure Vulnerability #443

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9 changes: 3 additions & 6 deletions src/main/java/org/scijava/util/FileUtils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
Expand Down Expand Up @@ -472,14 +473,10 @@ public static File createTemporaryDirectory(final String prefix,
final String suffix, final File directory) throws IOException
{
for (int counter = 0; counter < 10; counter++) {
final File file = File.createTempFile(prefix, suffix, directory);

if (!file.delete()) {
throw new IOException("Could not delete file " + file);
}
final File file = Files.createTempDirectory(directory.toPath(), prefix + suffix).toFile();

// in case of a race condition, just try again
if (file.mkdir()) return file;
if (true) return file;
}
throw new IOException(
"Could not create temporary directory (too many race conditions?)");
Expand Down