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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/sun/security/krb5/auto/ForwardableCheck.java
+++ b/test/jdk/sun/security/krb5/auto/ForwardableCheck.java
@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2014, 2018, 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 8022582 8194486
+ * @summary Relax response flags checking in sun.security.krb5.KrbKdcRep.check.
+ * @library /test/lib
+ * @compile -XDignore.symbol.file ForwardableCheck.java
+ * @run main jdk.test.lib.FileInstaller TestHosts TestHosts
+ * @run main/othervm -Djdk.net.hosts.file=TestHosts ForwardableCheck
+ */
+
+import org.ietf.jgss.GSSException;
+import sun.security.jgss.GSSUtil;
+
+import java.util.Arrays;
+
+public class ForwardableCheck {
+
+    public static void main(String[] args) throws Exception {
+        OneKDC kdc = new OneKDC(null);
+        kdc.writeJAASConf();
+
+        // USER can impersonate someone else
+        kdc.setOption(KDC.Option.ALLOW_S4U2SELF,
+                Arrays.asList(OneKDC.USER + "@" + OneKDC.REALM));
+        // USER2 is sensitive
+        kdc.setOption(KDC.Option.SENSITIVE_ACCOUNTS,
+                Arrays.asList(OneKDC.USER2 + "@" + OneKDC.REALM));
+
+        Context c;
+
+        // USER2 is sensitive but it's still able to get a normal ticket
+        c = Context.fromUserPass(OneKDC.USER2, OneKDC.PASS2, false);
+
+        // ... and connect to another account
+        c.startAsClient(OneKDC.USER, GSSUtil.GSS_KRB5_MECH_OID);
+        c.x().requestCredDeleg(true);
+        c.x().requestMutualAuth(false);
+
+        c.take(new byte[0]);
+
+        if (!c.x().isEstablished()) {
+            throw new Exception("Context should have been established");
+        }
+
+        // ... but will not be able to delegate itself
+        if (c.x().getCredDelegState()) {
+            throw new Exception("Impossible");
+        }
+
+        // Although USER is allowed to impersonate other people,
+        // it cannot impersonate USER2 coz it's sensitive.
+        c = Context.fromUserPass(OneKDC.USER, OneKDC.PASS, false);
+        try {
+            c.impersonate(OneKDC.USER2);
+            throw new Exception("Should fail");
+        } catch (GSSException e) {
+            e.printStackTrace();
+        }
+    }
+}