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[SECURITY] Fix Temporary Directory Hijacking or Information Disclosure Vulnerability #1246

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[SECURITY] Fix Temporary Directory Hijacking or Information Disclosure Vulnerability #1246

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89 changes: 41 additions & 48 deletions pkix/src/test/java/org/bouncycastle/tsp/test/ERSTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.math.BigInteger;
import java.nio.file.Files;
import java.security.KeyPair;
import java.security.MessageDigest;
import java.security.PrivateKey;
Expand Down Expand Up @@ -1066,56 +1067,48 @@ public void test4NodeBuild()
public void testDirUtil()
throws Exception
{
File rootDir = File.createTempFile("ers", ".dir");
rootDir.delete();
if (rootDir.mkdir())
{
DigestCalculatorProvider digestCalculatorProvider = new JcaDigestCalculatorProviderBuilder().build();
DigestCalculator digestCalculator = digestCalculatorProvider.get(new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256));

File h1 = new File(rootDir, "h1");
OutputStream fOut = new FileOutputStream(h1);
fOut.write(H1_DATA);
fOut.close();

File h2 = new File(rootDir, "h2");
fOut = new FileOutputStream(h2);
fOut.write(H2_DATA);
fOut.close();

File h3 = new File(rootDir, "h3");
h3.mkdir();
fOut = new FileOutputStream(new File(h3, "a"));
fOut.write(H3A_DATA);
fOut.close();
fOut = new FileOutputStream(new File(h3, "b"));
fOut.write(H3B_DATA);
fOut.close();
fOut = new FileOutputStream(new File(h3, "c"));
fOut.write(H3C_DATA);
fOut.close();

ERSArchiveTimeStampGenerator ersGen = new ERSArchiveTimeStampGenerator(digestCalculator);

ersGen.addData(new ERSFileData(h1));
ersGen.addData(new ERSFileData(h2));
ersGen.addData(new ERSDirectoryDataGroup(h3));

TimeStampRequestGenerator tspReqGen = new TimeStampRequestGenerator();

tspReqGen.setCertReq(true);

TimeStampRequest tspReq = ersGen.generateTimeStampRequest(tspReqGen);

Assert.assertTrue(Arrays.areEqual(Hex.decode("98fbf91c1aebdfec514d4a76532ec95f27ebcf4c8b6f7e2947afcbbfe7084cd4"),
File rootDir = Files.createTempDirectory("ers" + ".dir").toFile();
DigestCalculatorProvider digestCalculatorProvider = new JcaDigestCalculatorProviderBuilder().build();
DigestCalculator digestCalculator = digestCalculatorProvider.get(new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256));

File h1 = new File(rootDir, "h1");
OutputStream fOut = new FileOutputStream(h1);
fOut.write(H1_DATA);
fOut.close();

File h2 = new File(rootDir, "h2");
fOut = new FileOutputStream(h2);
fOut.write(H2_DATA);
fOut.close();

File h3 = new File(rootDir, "h3");
h3.mkdir();
fOut = new FileOutputStream(new File(h3, "a"));
fOut.write(H3A_DATA);
fOut.close();
fOut = new FileOutputStream(new File(h3, "b"));
fOut.write(H3B_DATA);
fOut.close();
fOut = new FileOutputStream(new File(h3, "c"));
fOut.write(H3C_DATA);
fOut.close();

ERSArchiveTimeStampGenerator ersGen = new ERSArchiveTimeStampGenerator(digestCalculator);

ersGen.addData(new ERSFileData(h1));
ersGen.addData(new ERSFileData(h2));
ersGen.addData(new ERSDirectoryDataGroup(h3));

TimeStampRequestGenerator tspReqGen = new TimeStampRequestGenerator();

tspReqGen.setCertReq(true);

TimeStampRequest tspReq = ersGen.generateTimeStampRequest(tspReqGen);

Assert.assertTrue(Arrays.areEqual(Hex.decode("98fbf91c1aebdfec514d4a76532ec95f27ebcf4c8b6f7e2947afcbbfe7084cd4"),
tspReq.getMessageImprintDigest()));

deleteDirectory(rootDir);
}
else
{
throw new Exception("can't create temp dir");
}
deleteDirectory(rootDir);
}

public void testBSIData()
Expand Down