[axis] Add missing connection hostname check against X.509 certificate name
Mikolaj Izdebski
mizdebsk at fedoraproject.org
Mon Jan 21 06:17:15 UTC 2013
commit 172d44dc645a834c61c4ca0120eaa192d9643cce
Author: Mikolaj Izdebski <mizdebsk at redhat.com>
Date: Mon Jan 21 06:56:22 2013 +0100
Add missing connection hostname check against X.509 certificate name
- Resolves: CVE-2012-5784
axis-CVE-2012-5784.patch | 316 ++++++++++++++++++++++++++++++++++++++++++++++
axis.spec | 10 ++-
2 files changed, 325 insertions(+), 1 deletions(-)
---
diff --git a/axis-CVE-2012-5784.patch b/axis-CVE-2012-5784.patch
new file mode 100644
index 0000000..2cfce30
--- /dev/null
+++ b/axis-CVE-2012-5784.patch
@@ -0,0 +1,316 @@
+
+--- axis-1.4.orig/src/org/apache/axis/components/net/JSSESocketFactory.java
++++ axis-1.4/src/org/apache/axis/components/net/JSSESocketFactory.java
+@@ -15,12 +15,6 @@
+ */
+ package org.apache.axis.components.net;
+
+-import org.apache.axis.utils.Messages;
+-import org.apache.axis.utils.XMLUtils;
+-import org.apache.axis.utils.StringUtils;
+-
+-import javax.net.ssl.SSLSocket;
+-import javax.net.ssl.SSLSocketFactory;
+ import java.io.BufferedWriter;
+ import java.io.IOException;
+ import java.io.InputStream;
+@@ -28,7 +22,27 @@ import java.io.OutputStream;
+ import java.io.OutputStreamWriter;
+ import java.io.PrintWriter;
+ import java.net.Socket;
++import java.security.cert.Certificate;
++import java.security.cert.CertificateParsingException;
++import java.security.cert.X509Certificate;
++import java.util.Arrays;
++import java.util.Collection;
+ import java.util.Hashtable;
++import java.util.Iterator;
++import java.util.LinkedList;
++import java.util.List;
++import java.util.Locale;
++import java.util.StringTokenizer;
++import java.util.regex.Pattern;
++
++import javax.net.ssl.SSLException;
++import javax.net.ssl.SSLSession;
++import javax.net.ssl.SSLSocket;
++import javax.net.ssl.SSLSocketFactory;
++
++import org.apache.axis.utils.Messages;
++import org.apache.axis.utils.StringUtils;
++import org.apache.axis.utils.XMLUtils;
+
+
+ /**
+@@ -41,6 +55,10 @@ import java.util.Hashtable;
+ */
+ public class JSSESocketFactory extends DefaultSocketFactory implements SecureSocketFactory {
+
++ // This is a a sorted list, if you insert new elements do it orderdered.
++ private final static String[] BAD_COUNTRY_2LDS =
++ {"ac", "co", "com", "ed", "edu", "go", "gouv", "gov", "info",
++ "lg", "ne", "net", "or", "org"};
+ /** Field sslFactory */
+ protected SSLSocketFactory sslFactory = null;
+
+@@ -187,6 +205,260 @@ public class JSSESocketFactory extends D
+ if (log.isDebugEnabled()) {
+ log.debug(Messages.getMessage("createdSSL00"));
+ }
++ verifyHostName(host, (SSLSocket) sslSocket);
+ return sslSocket;
+ }
++ /**
++ * Verifies that the given hostname in certicifate is the hostname we are trying to connect to
++ * http://www.cvedetails.com/cve/CVE-2012-5783/
++ * @param host
++ * @param ssl
++ * @throws IOException
++ */
++
++ private static void verifyHostName(String host, SSLSocket ssl)
++ throws IOException {
++ if (host == null) {
++ throw new IllegalArgumentException("host to verify was null");
++ }
++
++ SSLSession session = ssl.getSession();
++ if (session == null) {
++ // In our experience this only happens under IBM 1.4.x when
++ // spurious (unrelated) certificates show up in the server's chain.
++ // Hopefully this will unearth the real problem:
++ InputStream in = ssl.getInputStream();
++ in.available();
++ /*
++ If you're looking at the 2 lines of code above because you're
++ running into a problem, you probably have two options:
++
++ #1. Clean up the certificate chain that your server
++ is presenting (e.g. edit "/etc/apache2/server.crt" or
++ wherever it is your server's certificate chain is
++ defined).
++
++ OR
++
++ #2. Upgrade to an IBM 1.5.x or greater JVM, or switch to a
++ non-IBM JVM.
++ */
++
++ // If ssl.getInputStream().available() didn't cause an exception,
++ // maybe at least now the session is available?
++ session = ssl.getSession();
++ if (session == null) {
++ // If it's still null, probably a startHandshake() will
++ // unearth the real problem.
++ ssl.startHandshake();
++
++ // Okay, if we still haven't managed to cause an exception,
++ // might as well go for the NPE. Or maybe we're okay now?
++ session = ssl.getSession();
++ }
++ }
++
++ Certificate[] certs = session.getPeerCertificates();
++ verifyHostName(host.trim().toLowerCase(Locale.US), (X509Certificate) certs[0]);
++ }
++ /**
++ * Extract the names from the certificate and tests host matches one of them
++ * @param host
++ * @param cert
++ * @throws SSLException
++ */
++
++ private static void verifyHostName(final String host, X509Certificate cert)
++ throws SSLException {
++ // I'm okay with being case-insensitive when comparing the host we used
++ // to establish the socket to the hostname in the certificate.
++ // Don't trim the CN, though.
++
++ String cn = getCN(cert);
++ String[] subjectAlts = getDNSSubjectAlts(cert);
++ verifyHostName(host, cn.toLowerCase(Locale.US), subjectAlts);
++
++ }
++
++ /**
++ * Extract all alternative names from a certificate.
++ * @param cert
++ * @return
++ */
++ private static String[] getDNSSubjectAlts(X509Certificate cert) {
++ LinkedList subjectAltList = new LinkedList();
++ Collection c = null;
++ try {
++ c = cert.getSubjectAlternativeNames();
++ } catch (CertificateParsingException cpe) {
++ // Should probably log.debug() this?
++ cpe.printStackTrace();
++ }
++ if (c != null) {
++ Iterator it = c.iterator();
++ while (it.hasNext()) {
++ List list = (List) it.next();
++ int type = ((Integer) list.get(0)).intValue();
++ // If type is 2, then we've got a dNSName
++ if (type == 2) {
++ String s = (String) list.get(1);
++ subjectAltList.add(s);
++ }
++ }
++ }
++ if (!subjectAltList.isEmpty()) {
++ String[] subjectAlts = new String[subjectAltList.size()];
++ subjectAltList.toArray(subjectAlts);
++ return subjectAlts;
++ } else {
++ return new String[0];
++ }
++
++ }
++ /**
++ * Verifies
++ * @param host
++ * @param cn
++ * @param subjectAlts
++ * @throws SSLException
++ */
++
++ private static void verifyHostName(final String host, String cn, String[] subjectAlts)throws SSLException{
++ StringBuffer cnTested = new StringBuffer();
++
++ for (int i = 0; i < subjectAlts.length; i++){
++ String name = subjectAlts[i];
++ if (name != null) {
++ name = name.toLowerCase(Locale.US);
++ if (verifyHostName(host, name)){
++ return;
++ }
++ cnTested.append("/").append(name);
++ }
++ }
++ if (cn != null && verifyHostName(host, cn)){
++ return;
++ }
++ cnTested.append("/").append(cn);
++ throw new SSLException("hostname in certificate didn't match: <"
++ + host + "> != <" + cnTested + ">");
++
++ }
++
++ private static boolean verifyHostName(final String host, final String cn){
++ if (doWildCard(cn) && !isIPAddress(host)) {
++ return matchesWildCard(cn, host);
++ }
++ return host.equalsIgnoreCase(cn);
++ }
++ private static boolean doWildCard(String cn) {
++ // Contains a wildcard
++ // wildcard in the first block
++ // not an ipaddress (ip addres must explicitily be equal)
++ // not using 2nd level common tld : ex: not for *.co.uk
++ String parts[] = cn.split("\\.");
++ return parts.length >= 3 &&
++ parts[0].endsWith("*") &&
++ acceptableCountryWildcard(cn) &&
++ !isIPAddress(cn);
++ }
++
++ private static final Pattern IPV4_PATTERN =
++ Pattern.compile("^(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)(\\.(25[0-5]|2[0-4]\\d|[0-1]?\\d?\\d)){3}$");
++
++ private static final Pattern IPV6_STD_PATTERN =
++ Pattern.compile("^(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$");
++
++ private static final Pattern IPV6_HEX_COMPRESSED_PATTERN =
++ Pattern.compile("^((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)::((?:[0-9A-Fa-f]{1,4}(?::[0-9A-Fa-f]{1,4})*)?)$");
++
++
++ private static boolean isIPAddress(final String hostname) {
++ return hostname != null
++ && (
++ IPV4_PATTERN.matcher(hostname).matches()
++ || IPV6_STD_PATTERN.matcher(hostname).matches()
++ || IPV6_HEX_COMPRESSED_PATTERN.matcher(hostname).matches()
++ );
++
++ }
++
++ private static boolean acceptableCountryWildcard(final String cn) {
++ // The CN better have at least two dots if it wants wildcard action,
++ // but can't be [*.co.uk] or [*.co.jp] or [*.org.uk], etc...
++ // The [*.co.uk] problem is an interesting one. Should we just
++ // hope that CA's would never foolishly allow such a
++ // certificate to happen?
++
++ String[] parts = cn.split("\\.");
++ // Only checks for 3 levels, with country code of 2 letters.
++ if (parts.length > 3 || parts[parts.length - 1].length() != 2) {
++ return true;
++ }
++ String countryCode = parts[parts.length - 2];
++ return Arrays.binarySearch(BAD_COUNTRY_2LDS, countryCode) < 0;
++ }
++
++ private static boolean matchesWildCard(final String cn,
++ final String hostName) {
++ String parts[] = cn.split("\\.");
++ boolean match = false;
++ String firstpart = parts[0];
++ if (firstpart.length() > 1) {
++ // server∗
++ // e.g. server
++ String prefix = firstpart.substring(0, firstpart.length() - 1);
++ // skipwildcard part from cn
++ String suffix = cn.substring(firstpart.length());
++ // skip wildcard part from host
++ String hostSuffix = hostName.substring(prefix.length());
++ match = hostName.startsWith(prefix) && hostSuffix.endsWith(suffix);
++ } else {
++ match = hostName.endsWith(cn.substring(1));
++ }
++ if (match) {
++ // I f we ’ r e i n s t r i c t mode ,
++ // [ ∗.foo.com] is not allowed to match [a.b.foo.com]
++ match = countDots(hostName) == countDots(cn);
++ }
++ return match;
++ }
++
++ private static int countDots(final String data) {
++ int dots = 0;
++ for (int i = 0; i < data.length(); i++) {
++ if (data.charAt(i) == '.') {
++ dots += 1;
++ }
++ }
++ return dots;
++ }
++
++
++ private static String getCN(X509Certificate cert) {
++ // Note: toString() seems to do a better job than getName()
++ //
++ // For example, getName() gives me this:
++ // 1.2.840.113549.1.9.1=#16166a756c6975736461766965734063756362632e636f6d
++ //
++ // whereas toString() gives me this:
++ // EMAILADDRESS=juliusdavies at cucbc.com
++ String subjectPrincipal = cert.getSubjectX500Principal().toString();
++
++ return getCN(subjectPrincipal);
++
++ }
++ private static String getCN(String subjectPrincipal) {
++ StringTokenizer st = new StringTokenizer(subjectPrincipal, ",");
++ while(st.hasMoreTokens()) {
++ String tok = st.nextToken().trim();
++ if (tok.length() > 3) {
++ if (tok.substring(0, 3).equalsIgnoreCase("CN=")) {
++ return tok.substring(3);
++ }
++ }
++ }
++ return null;
++ }
++
+ }
diff --git a/axis.spec b/axis.spec
index a160896..bf019cf 100644
--- a/axis.spec
+++ b/axis.spec
@@ -1,6 +1,6 @@
Name: axis
Version: 1.4
-Release: 18%{?dist}
+Release: 19%{?dist}
Epoch: 0
Summary: SOAP implementation in Java
License: ASL 2.0
@@ -28,6 +28,9 @@ Source9: axis-ant-MANIFEST.MF
Patch0: %{name}-java16.patch
Patch1: %{name}-manifest.patch
Patch2: axis-1.4-wsdl-pom.patch
+# CVE-2012-5784: Does not verify that the server hostname matches X.509 certificate name
+# https://issues.apache.org/jira/secure/attachment/12560257/CVE-2012-5784-2.patch
+Patch3: %{name}-CVE-2012-5784.patch
BuildRequires: jpackage-utils >= 0:1.6
BuildRequires: java-devel >= 1:1.6.0
BuildRequires: ant >= 0:1.6
@@ -118,6 +121,7 @@ for f in $(find . -name "*.class"); do mv $f $f.no; done
cp %{SOURCE1} %{SOURCE2} %{SOURCE3} %{SOURCE4} .
# %patch2 -b .orig
+%patch3 -p1 -b .orig
%build
pushd lib
@@ -220,6 +224,10 @@ install -m 644 %{S:8} $RPM_BUILD_ROOT%{_mavenpomdir}/JPP.%{name}-axis-schema.pom
%doc docs/*
%changelog
+* Mon Jan 21 2013 Mikolaj Izdebski <mizdebsk at redhat.com> - 0:1.4-19
+- Add missing connection hostname check against X.509 certificate name
+- Resolves: CVE-2012-5784
+
* Tue Jul 31 2012 Andy Grimm <agrimm at gmail.com> - 0:1.4-18
- replace POMs with newer upstream versions using org.apache.axis gid
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