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http://labs.qt.nokia.com/2011/09/02/what-the-diginotar-security-breach-means-for-qt-users/
http://labs.qt.nokia.com/2011/09/07/what-the-diginotar-security-breach-means-for-qt-users-continued/
Original Author:Nokia
Upstream-Status: Integrated in upcoming versions
diff --git a/src/network/ssl/qsslcertificate.cpp b/src/network/ssl/qsslcertificate.cpp
index 328c5c2..1ae98f4 100644
--- a/src/network/ssl/qsslcertificate.cpp
+++ b/src/network/ssl/qsslcertificate.cpp
@@ -803,22 +803,47 @@ QList<QSslCertificate> QSslCertificatePrivate::certificatesFromDer(const QByteAr
// 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",
- "f5:c8:6a:f3:61:62:f1:3a:64:f5:4f:6d:c9:58:7c:06",
- "d7:55:8f:da:f5:f1:10:5b:b2:13:28:2b:70:77:29:a3",
- "39:2a:43:4f:0e:07:df:1f:8a:a3:05:de:34:e0:c2:29",
- "3e:75:ce:d4:6b:69:30:21:21:88:30:ae:86:a8:2a:71",
- "e9:02:8b:95:78:e4:15:dc:1a:71:0a:2b:88:15:44:47",
- "92:39:d5:34:8f:40:d1:69:5a:74:54:70:e1:f2:3f:43",
- "b0:b7:13:3e:d0:96:f9:b5:6f:ae:91:c8:74:bd:3a:c0",
- "d8:f3:5f:4e:b7:87:2b:2d:ab:06:92:e3:15:38:2f:b0",
+ "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++) {
- if (certificate.serialNumber() == certificate_blacklist[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;
diff --git a/src/network/ssl/qsslsocket_openssl.cpp b/src/network/ssl/qsslsocket_openssl.cpp
index 141d80a..b8e6c4c 100644
--- a/src/network/ssl/qsslsocket_openssl.cpp
+++ b/src/network/ssl/qsslsocket_openssl.cpp
@@ -1193,12 +1193,16 @@ bool QSslSocketBackendPrivate::startHandshake()
X509 *x509 = q_SSL_get_peer_certificate(ssl);
configuration.peerCertificate = QSslCertificatePrivate::QSslCertificate_from_X509(x509);
q_X509_free(x509);
- if (QSslCertificatePrivate::isBlacklisted(configuration.peerCertificate)) {
- q->setErrorString(QSslSocket::tr("The peer certificate is blacklisted"));
- q->setSocketError(QAbstractSocket::SslHandshakeFailedError);
- emit q->error(QAbstractSocket::SslHandshakeFailedError);
- plainSocket->disconnectFromHost();
- return false;
+
+ // 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.
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