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| author | Peter Hartmann <peter.hartmann@nokia.com> | 2010-08-10 11:59:57 (GMT) |
|---|---|---|
| committer | Peter Hartmann <peter.hartmann@nokia.com> | 2010-08-10 12:13:35 (GMT) |
| commit | 846f1b44eea4bb34d080d055badb40a4a13d369e (patch) | |
| tree | 4fc58a9d2f96bb9b595ac3db309134d330d74646 | |
| parent | 09884750f89a24b6f480b4519b3a2a1b4c2f028d (diff) | |
| download | Qt-846f1b44eea4bb34d080d055badb40a4a13d369e.zip Qt-846f1b44eea4bb34d080d055badb40a4a13d369e.tar.gz Qt-846f1b44eea4bb34d080d055badb40a4a13d369e.tar.bz2 | |
QSslSocket: fix security vulnerability with wildcard IP addresses
This fixes Westpoint Security issue with Advisory ID#: wp-10-0001.
Before, we would allow wildcards in IP addresses like *.2.3.4 ; now,
IP addresses must match excatly.
Patch-by: Richard J. Moore <rich@kde.org>
Task-number: QT-3704
| -rw-r--r-- | src/network/ssl/qsslsocket_openssl.cpp | 5 | ||||
| -rw-r--r-- | tests/auto/qsslsocket/tst_qsslsocket.cpp | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/src/network/ssl/qsslsocket_openssl.cpp b/src/network/ssl/qsslsocket_openssl.cpp index b4d030c..bb6910a 100644 --- a/src/network/ssl/qsslsocket_openssl.cpp +++ b/src/network/ssl/qsslsocket_openssl.cpp @@ -1288,6 +1288,11 @@ bool QSslSocketBackendPrivate::isMatchingHostname(const QString &cn, const QStri if (hostname.midRef(hostname.indexOf(QLatin1Char('.'))) != cn.midRef(firstCnDot)) return false; + // Check if the hostname is an IP address, if so then wildcards are not allowed + QHostAddress addr(hostname); + if (!addr.isNull()) + return false; + // Ok, I guess this was a wildcard CN and the hostname matches. return true; } diff --git a/tests/auto/qsslsocket/tst_qsslsocket.cpp b/tests/auto/qsslsocket/tst_qsslsocket.cpp index 0c12974..6c1dd8f 100644 --- a/tests/auto/qsslsocket/tst_qsslsocket.cpp +++ b/tests/auto/qsslsocket/tst_qsslsocket.cpp @@ -1072,6 +1072,7 @@ void tst_QSslSocket::wildcardCertificateNames() QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("*.example.com"), QString("www.example.com")), true ); QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("xxx*.example.com"), QString("xxxwww.example.com")), true ); QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("f*.example.com"), QString("foo.example.com")), true ); + QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("192.168.0.0"), QString("192.168.0.0")), true ); // Failing CN matches QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("xxx.example.com"), QString("www.example.com")), false ); @@ -1085,6 +1086,7 @@ void tst_QSslSocket::wildcardCertificateNames() QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("*.example."), QString("www.example")), false ); QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString(""), QString("www")), false ); QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("*"), QString("www")), false ); + QCOMPARE( QSslSocketBackendPrivate::isMatchingHostname(QString("*.168.0.0"), QString("192.168.0.0")), false ); } void tst_QSslSocket::wildcard() |