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[SECURITY] Fix Temporary Directory Hijacking or Information Disclosure Vulnerability #171

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[SECURITY] Fix Temporary Directory Hijacking or Information Disclosure Vulnerability #171

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11 changes: 2 additions & 9 deletions core/src/main/java/net/tomp2p/utils/Utils.java
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.FileChannel.MapMode;
import java.nio.file.Files;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
Expand Down Expand Up @@ -644,15 +645,7 @@ private static Inet4Address getInet4Address(byte[] bytes) {
// http://stackoverflow.com/questions/617414/create-a-temporary-directory-in-java
public static File createTempDir() throws IOException {
final File temp;
temp = File.createTempFile("temp", Long.toString(System.nanoTime()));

if (!(temp.delete())) {
throw new IOException("Could not delete temp file: " + temp.getAbsolutePath());
}

if (!(temp.mkdir())) {
throw new IOException("Could not create temp directory: " + temp.getAbsolutePath());
}
temp = Files.createTempDirectory("temp" + Long.toString(System.nanoTime())).toFile();
return (temp);
}

Expand Down