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

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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.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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104
test/jdk/sun/security/krb5/auto/Renew.java Normal file
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/*
* Copyright (c) 2015, 2022, 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 8058290 8194486
* @summary JAAS Krb5LoginModule has suspect ticket-renewal logic,
* relies on clockskew grace
* @library /test/lib
* @compile -XDignore.symbol.file Renew.java
* @run main jdk.test.lib.FileInstaller TestHosts TestHosts
* @run main/othervm -Djdk.net.hosts.file=TestHosts Renew 1
* @run main/othervm -Djdk.net.hosts.file=TestHosts Renew 2
* @run main/othervm -Djdk.net.hosts.file=TestHosts Renew 3
*/
import sun.security.krb5.Config;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Date;
import javax.security.auth.kerberos.KerberosTicket;
public class Renew {
public static void main(String[] args) throws Exception {
// Three test cases:
// 1. renewTGT=false
// 2. renewTGT=true with a short life time, renew will happen
// 3. renewTGT=true with a long life time, renew won't happen
int test = Integer.parseInt(args[0]);
OneKDC k = new OneKDC(null);
KDC.saveConfig(OneKDC.KRB5_CONF, k,
"renew_lifetime = 1d",
"ticket_lifetime = " + (test == 2? "10s": "8h"));
Config.refresh();
k.writeJAASConf();
// KDC would save ccache in a file
System.setProperty("test.kdc.save.ccache", "cache.here");
Files.write(Paths.get(OneKDC.JAAS_CONF), Arrays.asList(
"first {",
" com.sun.security.auth.module.Krb5LoginModule required;",
"};",
"second {",
" com.sun.security.auth.module.Krb5LoginModule required",
" doNotPrompt=true",
" renewTGT=" + (test != 1),
" useTicketCache=true",
" ticketCache=cache.here;",
"};"
));
Context c;
// The first login uses username and password
c = Context.fromUserPass(OneKDC.USER, OneKDC.PASS, false);
Date d1 = c.s().getPrivateCredentials(KerberosTicket.class).iterator().next().getAuthTime();
// 6s is longer than half of 10s
Date expiring = new Date(d1.getTime() + 6000);
while (new Date().before(expiring)) {
Thread.sleep(500);
}
// The second login uses the cache
c = Context.fromJAAS("second");
Date d2 = c.s().getPrivateCredentials(KerberosTicket.class).iterator().next().getAuthTime();
if (test == 2) {
if (d1.equals(d2)) {
throw new Exception("Ticket not renewed");
}
} else {
if (!d1.equals(d2)) {
throw new Exception("Ticket renewed");
}
}
}
}