[edk2-devel] [PATCH v1 4/4] NetworkPkg/HttpDxe: Set the HostName for the verification(CVE-2019-14553)

[Wu, Jiaxin]

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.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Wu Jiaxin <jiaxin...@intel.com>
Reviewed-by: Ye Ting <ting...@intel.com>
Reviewed-by: Long Qin <qin.l...@intel.com>
Reviewed-by: Fu Siyuan <siyuan...@intel.com>
Acked-by: Laszlo Ersek <ler...@redhat.com>
---
 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 6e1f51748a..34308e016d 100644
--- a/NetworkPkg/HttpDxe/HttpProto.h
+++ b/NetworkPkg/HttpDxe/HttpProto.h
@@ -80,10 +80,11 @@ 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;
 
 //
 // Callback data for HTTP_PARSER_CALLBACK()
diff --git a/NetworkPkg/HttpDxe/HttpsSupport.c 
b/NetworkPkg/HttpDxe/HttpsSupport.c
index 988bbcbce7..5dfb13bd60 100644
--- a/NetworkPkg/HttpDxe/HttpsSupport.c
+++ b/NetworkPkg/HttpDxe/HttpsSupport.c
@@ -621,17 +621,20 @@ TlsConfigureSession (
   EFI_STATUS                 Status;
 
   //
   // 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,
                                 EfiTlsConnectionEnd,
@@ -650,10 +653,20 @@ 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),
                                 sizeof (EFI_TLS_SESSION_STATE)
-- 
2.17.1.windows.2


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