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- fix bnc#8033332: no ssl certificate hostname checking (CVE-2012-5783)

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* commons-httpclient-CVE-2012-5783.patch
- add jakarta- compat symlinks

OBS-URL: https://build.opensuse.org/package/show/Java:packages/apache-commons-httpclient?expand=0&rev=3
This commit is contained in:
Michal Vyskocil 2013-02-14 09:26:33 +00:00 committed by Git OBS Bridge
parent b1a9891382
commit c068000428
3 changed files with 227 additions and 0 deletions
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7
apache-commons-httpclient.changes
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@ -1,3 +1,10 @@
-------------------------------------------------------------------
Thu Feb 14 09:10:48 UTC 2013 - mvyskocil@suse.com
- fix bnc#8033332: no ssl certificate hostname checking (CVE-2012-5783)
* commons-httpclient-CVE-2012-5783.patch
- add jakarta- compat symlinks
-------------------------------------------------------------------
Sun Feb 3 20:07:59 UTC 2013 - p.drouand@gmail.com

8
apache-commons-httpclient.spec
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@ -32,6 +32,9 @@ Patch0: %{name}-disablecryptotests.patch
# Add OSGi MANIFEST.MF bits
Patch1: %{name}-addosgimanifest.patch
Patch2: %{name}-encoding.patch
#PATCH-FIX-UPSTREAM: bnc#803332
#http://svn.apache.org/viewvc?view=revision&revision=483925
Patch3: commons-httpclient-CVE-2012-5783.patch
BuildArch: noarch
BuildRoot: %{_tmppath}/%{name}-%{version}-build
@ -148,6 +151,8 @@ pushd $RPM_BUILD_ROOT%{_javadir}
ln -s apache-commons-httpclient.jar apache-commons-httpclient3.jar
ln -s apache-commons-httpclient.jar commons-httpclient3.jar
ln -s apache-commons-httpclient.jar commons-httpclient.jar
ln -s apache-commons-httpclient.jar jakarta-commons-httpclient.jar
ln -s apache-commons-httpclient.jar jakarta-commons-httpclient3.jar
popd
# javadoc
@ -162,6 +167,9 @@ cp -pr src/examples src/contrib $RPM_BUILD_ROOT%{_datadir}/%{name}
rm -f dist/docs/{BUILDING,TESTING}.txt
ln -s %{_javadocdir}/%{name} dist/docs/apidocs
%clean
rm -rf $RPM_BUILD_ROOT
%files
%defattr(0644,root,root,0755)
%doc LICENSE.txt README.txt RELEASE_NOTES.txt

212
commons-httpclient-CVE-2012-5783.patch Normal file
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@ -0,0 +1,212 @@
Index: commons-httpclient-3.1/src/java/org/apache/commons/httpclient/protocol/SSLProtocolSocketFactory.java
===================================================================
--- commons-httpclient-3.1.orig/src/java/org/apache/commons/httpclient/protocol/SSLProtocolSocketFactory.java
+++ commons-httpclient-3.1/src/java/org/apache/commons/httpclient/protocol/SSLProtocolSocketFactory.java
@@ -31,10 +31,17 @@
package org.apache.commons.httpclient.protocol;
import java.io.IOException;
+import java.io.InputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
+import java.security.cert.Certificate;
+import java.security.cert.X509Certificate;
+
+import javax.net.ssl.SSLException;
+import javax.net.ssl.SSLSession;
+import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import org.apache.commons.httpclient.ConnectTimeoutException;
@@ -79,12 +86,17 @@ public class SSLProtocolSocketFactory im
InetAddress clientHost,
int clientPort)
throws IOException, UnknownHostException {
- return SSLSocketFactory.getDefault().createSocket(
+ SSLSocket socket = (SSLSocket) SSLSocketFactory.getDefault().createSocket(
host,
port,
clientHost,
clientPort
);
+
+ verifyHostName( host, (SSLSocket) socket );
+
+ // verifyHostName() didn't blowup - good!
+ return socket;
}
/**
@@ -124,15 +136,18 @@ public class SSLProtocolSocketFactory im
}
int timeout = params.getConnectionTimeout();
if (timeout == 0) {
- return createSocket(host, port, localAddress, localPort);
+ SSLSocket socket = (SSLSocket) createSocket(host, port, localAddress, localPort);
+ verifyHostName(host, (SSLSocket) socket);
+ return socket;
} else {
// To be eventually deprecated when migrated to Java 1.4 or above
- Socket socket = ReflectionSocketFactory.createSocket(
+ SSLSocket socket =(SSLSocket) ReflectionSocketFactory.createSocket(
"javax.net.ssl.SSLSocketFactory", host, port, localAddress, localPort, timeout);
if (socket == null) {
- socket = ControllerThreadSocketFactory.createSocket(
+ socket = (SSLSocket) ControllerThreadSocketFactory.createSocket(
this, host, port, localAddress, localPort, timeout);
}
+ verifyHostName(host, (SSLSocket) socket);
return socket;
}
}
@@ -142,10 +157,12 @@ public class SSLProtocolSocketFactory im
*/
public Socket createSocket(String host, int port)
throws IOException, UnknownHostException {
- return SSLSocketFactory.getDefault().createSocket(
+ SSLSocket socket = (SSLSocket) SSLSocketFactory.getDefault().createSocket(
host,
port
);
+ verifyHostName( host, (SSLSocket) socket );
+ return socket;
}
/**
@@ -157,14 +174,133 @@ public class SSLProtocolSocketFactory im
int port,
boolean autoClose)
throws IOException, UnknownHostException {
- return ((SSLSocketFactory) SSLSocketFactory.getDefault()).createSocket(
+ SSLSocket s = (SSLSocket) ((SSLSocketFactory) SSLSocketFactory.getDefault()).createSocket(
socket,
host,
port,
autoClose
);
+ verifyHostName( host, (SSLSocket) socket );
+
+ // verifyHostName() didn't blowup - good!
+ return s;
+ }
+
+ private static void verifyHostName( String host, SSLSocket ssl )
+ throws IOException {
+ if ( host == null ) {
+ throw new NullPointerException( "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();
+ X509Certificate x509 = (X509Certificate) certs[ 0 ];
+ String cn = getCN( x509 );
+ if ( cn == null ) {
+ String subject = x509.getSubjectX500Principal().toString();
+ String msg = "certificate doesn't contain CN: " + subject;
+ throw new SSLException( msg );
+ }
+ // 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.
+ cn = cn.toLowerCase();
+ host = host.trim().toLowerCase();
+ boolean doWildcard = false;
+ if ( cn.startsWith( "*." ) ) {
+ // 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...
+ String withoutCountryCode = "";
+ if ( cn.length() >= 7 && cn.length() <= 9 ) {
+ withoutCountryCode = cn.substring( 2, cn.length() - 2 );
+ }
+ doWildcard = cn.lastIndexOf( '.' ) >= 0 &&
+ !"ac.".equals( withoutCountryCode ) &&
+ !"co.".equals( withoutCountryCode ) &&
+ !"com.".equals( withoutCountryCode ) &&
+ !"ed.".equals( withoutCountryCode ) &&
+ !"edu.".equals( withoutCountryCode ) &&
+ !"go.".equals( withoutCountryCode ) &&
+ !"gouv.".equals( withoutCountryCode ) &&
+ !"gov.".equals( withoutCountryCode ) &&
+ !"info.".equals( withoutCountryCode ) &&
+ !"lg.".equals( withoutCountryCode ) &&
+ !"ne.".equals( withoutCountryCode ) &&
+ !"net.".equals( withoutCountryCode ) &&
+ !"or.".equals( withoutCountryCode ) &&
+ !"org.".equals( withoutCountryCode );
+
+ // The [*.co.uk] problem is an interesting one. Should we just
+ // hope that CA's would never foolishly allow such a
+ // certificate to happen?
+ }
+
+ boolean match;
+ if ( doWildcard ) {
+ match = host.endsWith( cn.substring( 1 ) );
+ } else {
+ match = host.equals( cn );
+ }
+ if ( !match ) {
+ throw new SSLException( "hostname in certificate didn't match: <" + host + "> != <" + cn + ">" );
+ }
}
+ 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@cucbc.com
+ String subjectPrincipal = cert.getSubjectX500Principal().toString();
+ int x = subjectPrincipal.indexOf( "CN=" );
+ if ( x >= 0 ) {
+ int y = subjectPrincipal.indexOf( ',', x );
+ // If there are no more commas, then CN= is the last entry.
+ y = ( y >= 0 ) ? y : subjectPrincipal.length();
+ return subjectPrincipal.substring( x + 3, y );
+ } else {
+ return null;
+ }
+ }
+
/**
* All instances of SSLProtocolSocketFactory are the same.
*/