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libqt4-devel-doc.import5129
blacklist-diginotar-and-comodo-certs.diff
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File blacklist-diginotar-and-comodo-certs.diff of Package libqt4-devel-doc.import5129
diff --git a/src/network/ssl/qsslcertificate.cpp b/src/network/ssl/qsslcertificate.cpp index ce8a1dc..1ae98f4 100644 --- a/src/network/ssl/qsslcertificate.cpp +++ b/src/network/ssl/qsslcertificate.cpp @@ -219,17 +219,19 @@ bool QSslCertificate::isNull() const Returns true if this certificate is valid; otherwise returns false. - Note: Currently, this function only checks that the current + Note: Currently, this function checks that the current data-time is within the date-time range during which the - certificate is considered valid. No other checks are - currently performed. + certificate is considered valid, and checks that the + certificate is not in a blacklist of fraudulent certificates. \sa isNull() */ bool QSslCertificate::isValid() const { const QDateTime currentTime = QDateTime::currentDateTime(); - return currentTime >= d->notValidBefore && currentTime <= d->notValidAfter; + return currentTime >= d->notValidBefore && + currentTime <= d->notValidAfter && + ! QSslCertificatePrivate::isBlacklisted(*this); } /*! @@ -798,6 +800,55 @@ QList<QSslCertificate> QSslCertificatePrivate::certificatesFromDer(const QByteAr return certificates; } +// These certificates are known to be fraudulent and were created during the comodo +// compromise. See http://www.comodo.com/Comodo-Fraud-Incident-2011-03-23.html +static const char *certificate_blacklist[] = { + "04:7e:cb:e9:fc:a5:5f:7b:d0:9e:ae:36:e1:0c:ae:1e", "mail.google.com", // Comodo + "f5:c8:6a:f3:61:62:f1:3a:64:f5:4f:6d:c9:58:7c:06", "www.google.com", // Comodo + "d7:55:8f:da:f5:f1:10:5b:b2:13:28:2b:70:77:29:a3", "login.yahoo.com", // Comodo + "39:2a:43:4f:0e:07:df:1f:8a:a3:05:de:34:e0:c2:29", "login.yahoo.com", // Comodo + "3e:75:ce:d4:6b:69:30:21:21:88:30:ae:86:a8:2a:71", "login.yahoo.com", // Comodo + "e9:02:8b:95:78:e4:15:dc:1a:71:0a:2b:88:15:44:47", "login.skype.com", // Comodo + "92:39:d5:34:8f:40:d1:69:5a:74:54:70:e1:f2:3f:43", "addons.mozilla.org", // Comodo + "b0:b7:13:3e:d0:96:f9:b5:6f:ae:91:c8:74:bd:3a:c0", "login.live.com", // Comodo + "d8:f3:5f:4e:b7:87:2b:2d:ab:06:92:e3:15:38:2f:b0", "global trustee", // Comodo + + "05:e2:e6:a4:cd:09:ea:54:d6:65:b0:75:fe:22:a2:56", "*.google.com", // leaf certificate issued by DigiNotar + "0c:76:da:9c:91:0c:4e:2c:9e:fe:15:d0:58:93:3c:4c", "DigiNotar Root CA", // DigiNotar root + "f1:4a:13:f4:87:2b:56:dc:39:df:84:ca:7a:a1:06:49", "DigiNotar Services CA", // DigiNotar intermediate signed by DigiNotar Root + "36:16:71:55:43:42:1b:9d:e6:cb:a3:64:41:df:24:38", "DigiNotar Services 1024 CA", // DigiNotar intermediate signed by DigiNotar Root + "0a:82:bd:1e:14:4e:88:14:d7:5b:1a:55:27:be:bf:3e", "DigiNotar Root CA G2", // other DigiNotar Root CA + "a4:b6:ce:e3:2e:d3:35:46:26:3c:b3:55:3a:a8:92:21", "CertiID Enterprise Certificate Authority", // DigiNotar intermediate signed by "DigiNotar Root CA G2" + "5b:d5:60:9c:64:17:68:cf:21:0e:35:fd:fb:05:ad:41", "DigiNotar Qualified CA", // DigiNotar intermediate signed by DigiNotar Root + + "1184640176", "DigiNotar Services 1024 CA", // DigiNotar intermediate cross-signed by Entrust + "120000525", "DigiNotar Cyber CA", // DigiNotar intermediate cross-signed by CyberTrust + "120000505", "DigiNotar Cyber CA", // DigiNotar intermediate cross-signed by CyberTrust + "120000515", "DigiNotar Cyber CA", // DigiNotar intermediate cross-signed by CyberTrust + "20015536", "DigiNotar PKIoverheid CA Overheid en Bedrijven", // DigiNotar intermediate cross-signed by the Dutch government + "20001983", "DigiNotar PKIoverheid CA Organisatie - G2", // DigiNotar intermediate cross-signed by the Dutch government + "d6:d0:29:77:f1:49:fd:1a:83:f2:b9:ea:94:8c:5c:b4", "DigiNotar Extended Validation CA", // DigiNotar intermediate signed by DigiNotar EV Root + "1e:7d:7a:53:3d:45:30:41:96:40:0f:71:48:1f:45:04", "DigiNotar Public CA 2025", // DigiNotar intermediate +// "(has not been seen in the wild so far)", "DigiNotar Public CA - G2", // DigiNotar intermediate +// "(has not been seen in the wild so far)", "Koninklijke Notariele Beroepsorganisatie CA", // compromised during DigiNotar breach +// "(has not been seen in the wild so far)", "Stichting TTP Infos CA," // compromised during DigiNotar breach + "1184640175", "DigiNotar Root CA", // DigiNotar intermediate cross-signed by Entrust + "1184644297", "DigiNotar Root CA", // DigiNotar intermediate cross-signed by Entrust + 0 +}; + +bool QSslCertificatePrivate::isBlacklisted(const QSslCertificate &certificate) +{ + for (int a = 0; certificate_blacklist[a] != 0; a++) { + QString blacklistedCommonName = QString::fromUtf8(certificate_blacklist[(a+1)]); + if (certificate.serialNumber() == certificate_blacklist[a++] && + (certificate.subjectInfo(QSslCertificate::CommonName) == blacklistedCommonName || + certificate.issuerInfo(QSslCertificate::CommonName) == blacklistedCommonName)) + return true; + } + return false; +} + #ifndef QT_NO_DEBUG_STREAM QDebug operator<<(QDebug debug, const QSslCertificate &certificate) { diff --git a/src/network/ssl/qsslcertificate_p.h b/src/network/ssl/qsslcertificate_p.h index 0731661..448ca8d 100644 --- a/src/network/ssl/qsslcertificate_p.h +++ b/src/network/ssl/qsslcertificate_p.h @@ -96,6 +96,7 @@ public: static QSslCertificate QSslCertificate_from_X509(X509 *x509); static QList<QSslCertificate> certificatesFromPem(const QByteArray &pem, int count = -1); static QList<QSslCertificate> certificatesFromDer(const QByteArray &der, int count = -1); + static bool isBlacklisted(const QSslCertificate &certificate); friend class QSslSocketBackendPrivate; diff --git a/src/network/ssl/qsslsocket_openssl.cpp b/src/network/ssl/qsslsocket_openssl.cpp index 1050015..b8e6c4c 100644 --- a/src/network/ssl/qsslsocket_openssl.cpp +++ b/src/network/ssl/qsslsocket_openssl.cpp @@ -1194,6 +1194,17 @@ bool QSslSocketBackendPrivate::startHandshake() configuration.peerCertificate = QSslCertificatePrivate::QSslCertificate_from_X509(x509); q_X509_free(x509); + // check the whole chain for blacklisting (including root, as we check for subjectInfo and issuer) + foreach (const QSslCertificate &cert, configuration.peerCertificateChain) { + if (QSslCertificatePrivate::isBlacklisted(cert)) { + q->setErrorString(QSslSocket::tr("The peer certificate is blacklisted")); + q->setSocketError(QAbstractSocket::SslHandshakeFailedError); + emit q->error(QAbstractSocket::SslHandshakeFailedError); + plainSocket->disconnectFromHost(); + return false; + } + } + // Start translating errors. QList<QSslError> errors; bool doVerifyPeer = configuration.peerVerifyMode == QSslSocket::VerifyPeer
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