undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/java/security/cert/CertPathValidator/nameConstraintsRFC822/ValidateCertPath.java

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+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 4684810 6994717
+ * @summary Verify that RFC822 name constraints are checked correctly
+ */
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.io.IOException;
+
+import java.security.cert.*;
+import java.security.cert.PKIXReason;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Date;
+import java.util.List;
+import java.util.Set;
+
+/**
+ * ValidateCertPath performs a simple validation of a certification path.
+ * On success, it prints the CertPathValidatorResult. On failure, it
+ * prints the error.
+ *
+ * Synopsis:
+ * <pre>
+ *   ValidateCertPath trustAnchor [certFile ...]
+ *       where each argument is the path to a file that contains a
+ *       certificate. Each certificate should have an issuer equal to
+ *       the subject of the preceding certificate.
+ *</pre>
+ *
+ * @author      Steve Hanna
+ */
+public final class ValidateCertPath {
+
+    private final static String BASE = System.getProperty("test.src", "./");
+
+    private static CertPath path;
+    private static PKIXParameters params;
+
+    public static void main(String[] args) throws Exception {
+
+        try {
+            parseArgs(args);
+            validate(path, params);
+            throw new Exception("Successfully validated invalid path.");
+        } catch (CertPathValidatorException e) {
+            if (e.getReason() != PKIXReason.INVALID_NAME) {
+                throw new Exception("unexpected reason: " + e.getReason());
+            }
+            System.out.println("Path rejected as expected: " + e);
+        }
+    }
+
+    /**
+     * Parse the command line arguments. Populate the static
+     * class fields based on the values of the arugments. In
+     * case of bad arguments, print usage and exit. In case of
+     * other error, throw an exception.
+     *
+     * @param args command line arguments
+     * @throws Exception on error
+     */
+    public static void parseArgs(String[] args) throws Exception {
+        args = new String[] {"jane2jane.cer", "jane2steve.cer", "steve2tom.cer"};
+
+        TrustAnchor anchor = new TrustAnchor(getCertFromFile(args[0]), null);
+        List<X509Certificate> list = new ArrayList<X509Certificate>();
+        for (int i = 1; i < args.length; i++) {
+            list.add(0, getCertFromFile(args[i]));
+        }
+        CertificateFactory cf = CertificateFactory.getInstance("X509");
+        path = cf.generateCertPath(list);
+
+        Set<TrustAnchor> anchors = Collections.singleton(anchor);
+        params = new PKIXParameters(anchors);
+        params.setRevocationEnabled(false);
+        // The certificates expired on 10/22/10, so set the validity date to
+        // 05/01/2009 to avoid expiration failures
+        params.setDate(new Date(1243828800000l));
+    }
+
+    /*
+     * Reads the entire input stream into a byte array.
+     */
+    private static byte[] getTotalBytes(InputStream is) throws IOException {
+        byte[] buffer = new byte[8192];
+        ByteArrayOutputStream baos = new ByteArrayOutputStream(2048);
+        int n;
+        baos.reset();
+        while ((n = is.read(buffer, 0, buffer.length)) != -1) {
+            baos.write(buffer, 0, n);
+        }
+        return baos.toByteArray();
+    }
+
+    /**
+     * Get a DER-encoded X.509 certificate from a file.
+     *
+     * @param certFilePath path to file containing DER-encoded certificate
+     * @return X509Certificate
+     * @throws IOException on error
+     */
+    public static X509Certificate getCertFromFile(String certFilePath)
+        throws IOException {
+            X509Certificate cert = null;
+            try {
+                File certFile = new File(BASE, certFilePath);
+                if (!certFile.canRead())
+                    throw new IOException("File " +
+                                          certFile.toString() +
+                                          " is not a readable file.");
+                FileInputStream certFileInputStream =
+                    new FileInputStream(certFile);
+                CertificateFactory cf = CertificateFactory.getInstance("X509");
+                cert = (X509Certificate)
+                    cf.generateCertificate(certFileInputStream);
+            } catch (Exception e) {
+                e.printStackTrace();
+                throw new IOException("Can't construct X509Certificate: " +
+                                      e.getMessage());
+            }
+            return cert;
+    }
+
+    /**
+     * Perform a PKIX validation. On success, print the
+     * CertPathValidatorResult on System.out. On failure,
+     * throw an exception.
+     *
+     * @param path CertPath to validate
+     * @param params PKIXParameters to use in validation
+     * @throws Exception on error
+     */
+    public static void validate(CertPath path, PKIXParameters params)
+        throws Exception {
+        CertPathValidator validator =
+            CertPathValidator.getInstance("PKIX");
+        CertPathValidatorResult cpvr = validator.validate(path, params);
+        System.out.println("ValidateCertPath successful.");
+    }
+}