[PATCH v2 8/8] NetworkPkg/HttpDxe: Set the HostName for the verification (CVE-2019-14553)

["Laszlo Ersek" <lersek@redhat.com>]

From: "Wu, Jiaxin" <jiaxin.wu@intel.com>

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=960
CVE: CVE-2019-14553
Set the HostName by consuming TLS protocol to enable the host name
check so as to avoid the potential Man-In-The-Middle attack.

Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Long Qin <qin.long@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190927034441.3096-5-Jiaxin.wu@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Sivaraman Nainar <sivaramann@amiindia.co.in>
Cc: Xiaoyu Lu <xiaoyux.lu@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---

Notes:
    v2:
    - fix whitespace in subject line
    - drop Contributed-under line per BZ#1373

 NetworkPkg/HttpDxe/HttpProto.h    |  1 +
 NetworkPkg/HttpDxe/HttpsSupport.c | 21 ++++++++++++++++----
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/NetworkPkg/HttpDxe/HttpProto.h b/NetworkPkg/HttpDxe/HttpProto.h
index 6e1f51748a73..34308e016d3e 100644
--- a/NetworkPkg/HttpDxe/HttpProto.h
+++ b/NetworkPkg/HttpDxe/HttpProto.h
@@ -81,8 +81,9 @@ typedef struct {
 typedef struct {
   EFI_TLS_VERSION               Version;
   EFI_TLS_CONNECTION_END        ConnectionEnd;
   EFI_TLS_VERIFY                VerifyMethod;
+  EFI_TLS_VERIFY_HOST           VerifyHost;
   EFI_TLS_SESSION_STATE         SessionState;
 } TLS_CONFIG_DATA;
 
 //
diff --git a/NetworkPkg/HttpDxe/HttpsSupport.c b/NetworkPkg/HttpDxe/HttpsSupport.c
index 988bbcbce7d8..5dfb13bd6021 100644
--- a/NetworkPkg/HttpDxe/HttpsSupport.c
+++ b/NetworkPkg/HttpDxe/HttpsSupport.c
@@ -622,15 +622,18 @@ TlsConfigureSession (
 
   //
   // TlsConfigData initialization
   //
-  HttpInstance->TlsConfigData.ConnectionEnd = EfiTlsClient;
-  HttpInstance->TlsConfigData.VerifyMethod = EFI_TLS_VERIFY_PEER;
-  HttpInstance->TlsConfigData.SessionState = EfiTlsSessionNotStarted;
+  HttpInstance->TlsConfigData.ConnectionEnd       = EfiTlsClient;
+  HttpInstance->TlsConfigData.VerifyMethod        = EFI_TLS_VERIFY_PEER;
+  HttpInstance->TlsConfigData.VerifyHost.Flags    = EFI_TLS_VERIFY_FLAG_NO_WILDCARDS;
+  HttpInstance->TlsConfigData.VerifyHost.HostName = HttpInstance->RemoteHost;
+  HttpInstance->TlsConfigData.SessionState        = EfiTlsSessionNotStarted;
 
   //
   // EfiTlsConnectionEnd,
-  // EfiTlsVerifyMethod
+  // EfiTlsVerifyMethod,
+  // EfiTlsVerifyHost,
   // EfiTlsSessionState
   //
   Status = HttpInstance->Tls->SetSessionData (
                                 HttpInstance->Tls,
@@ -651,8 +654,18 @@ TlsConfigureSession (
   if (EFI_ERROR (Status)) {
     return Status;
   }
 
+  Status = HttpInstance->Tls->SetSessionData (
+                                HttpInstance->Tls,
+                                EfiTlsVerifyHost,
+                                &HttpInstance->TlsConfigData.VerifyHost,
+                                sizeof (EFI_TLS_VERIFY_HOST)
+                                );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
   Status = HttpInstance->Tls->SetSessionData (
                                 HttpInstance->Tls,
                                 EfiTlsSessionState,
                                 &(HttpInstance->TlsConfigData.SessionState),
-- 
2.19.1.3.g30247aa5d201