REF: https://bugzilla.tianocore.org/show_bug.cgi?id=960
CVE: CVE-2019-14553
In the patch, we add the new data type named "EfiTlsVerifyHost" and
the EFI_TLS_VERIFY_HOST_FLAG for the TLS protocol consumer (HTTP)
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>
---
MdePkg/Include/Protocol/Tls.h | 68 +++++++++++++++++++++++++++++------
1 file changed, 57 insertions(+), 11 deletions(-)
diff --git a/MdePkg/Include/Protocol/Tls.h b/MdePkg/Include/Protocol/Tls.h
index bf1b6727a1..af524ae2a6 100644
--- a/MdePkg/Include/Protocol/Tls.h
+++ b/MdePkg/Include/Protocol/Tls.h
@@ -39,14 +39,10 @@ typedef struct _EFI_TLS_PROTOCOL EFI_TLS_PROTOCOL;
///
/// EFI_TLS_SESSION_DATA_TYPE
///
typedef enum {
- ///
- /// Session Configuration
- ///
-
///
/// TLS session Version. The corresponding Data is of type EFI_TLS_VERSION.
///
EfiTlsVersion,
///
@@ -84,15 +80,10 @@ typedef enum {
///
/// TLS session data session state.
/// The corresponding Data is of type EFI_TLS_SESSION_STATE.
///
EfiTlsSessionState,
-
- ///
- /// Session information
- ///
-
///
/// TLS session data client random.
/// The corresponding Data is of type EFI_TLS_RANDOM.
///
EfiTlsClientRandom,
@@ -104,13 +95,19 @@ typedef enum {
///
/// TLS session data key material.
/// The corresponding Data is of type EFI_TLS_MASTER_SECRET.
///
EfiTlsKeyMaterial,
+ ///
+ /// TLS session hostname for validation which is used to verify whether the
name
+ /// within the peer certificate matches a given host name.
+ /// This parameter is invalid when EfiTlsVerifyMethod is EFI_TLS_VERIFY_NONE.
+ /// The corresponding Data is of type EFI_TLS_VERIFY_HOST.
+ ///
+ EfiTlsVerifyHost,
EfiTlsSessionDataTypeMaximum
-
} EFI_TLS_SESSION_DATA_TYPE;
///
/// EFI_TLS_VERSION
/// Note: The TLS version definition is from SSL3.0 to the latest TLS (e.g.
1.2).
@@ -176,19 +173,68 @@ typedef UINT32 EFI_TLS_VERIFY;
/// The TLS/SSL handshake is immediately terminated with an alert message
containing
/// the reason for the certificate verification failure.
///
#define EFI_TLS_VERIFY_PEER 0x1
///
-/// TLS session will fail peer certificate is absent.
+/// EFI_TLS_VERIFY_FAIL_IF_NO_PEER_CERT is only meaningful in the server mode.
+/// TLS session will fail if client certificate is absent.
///
#define EFI_TLS_VERIFY_FAIL_IF_NO_PEER_CERT 0x2
///
/// TLS session only verify client once, and doesn't request certificate during
/// re-negotiation.
///
#define EFI_TLS_VERIFY_CLIENT_ONCE 0x4
+///
+/// EFI_TLS_VERIFY_HOST_FLAG
+///
+typedef UINT32 EFI_TLS_VERIFY_HOST_FLAG;
+///
+/// There is no additional flags set for hostname validation.
+/// Wildcards are supported and they match only in the left-most label.
+///
+#define EFI_TLS_VERIFY_FLAG_NONE 0x00
+///
+/// Always check the Subject Distinguished Name (DN) in the peer certificate
even if the
+/// certificate contains Subject Alternative Name (SAN).
+///
+#define EFI_TLS_VERIFY_FLAG_ALWAYS_CHECK_SUBJECT 0x01
+///
+/// Disable the match of all wildcards.
+///
+#define EFI_TLS_VERIFY_FLAG_NO_WILDCARDS 0x02
+///
+/// Disable the "*" as wildcard in labels that have a prefix or suffix (e.g.
"www*" or "*www").
+///
+#define EFI_TLS_VERIFY_FLAG_NO_PARTIAL_WILDCARDS 0x04
+///
+/// Allow the "*" to match more than one labels. Otherwise, only matches a
single label.
+///
+#define EFI_TLS_VERIFY_FLAG_MULTI_LABEL_WILDCARDS 0x08
+///
+/// Restrict to only match direct child sub-domains which start with ".".
+/// For example, a name of ".example.com" would match "www.example.com" with
this flag,
+/// but would not match "www.sub.example.com".
+///
+#define EFI_TLS_VERIFY_FLAG_SINGLE_LABEL_SUBDOMAINS 0x10
+///
+/// Never check the Subject Distinguished Name (DN) even there is no
+/// Subject Alternative Name (SAN) in the certificate.
+///
+#define EFI_TLS_VERIFY_FLAG_NEVER_CHECK_SUBJECT 0x20
+
+///
+/// EFI_TLS_VERIFY_HOST
+///
+#pragma pack (1)
+typedef struct {
+ EFI_TLS_VERIFY_HOST_FLAG Flags;
+ CHAR8 *HostName;
+} EFI_TLS_VERIFY_HOST;
+#pragma pack ()
+
///
/// EFI_TLS_RANDOM
/// Note: The definition of EFI_TLS_RANDOM is from "RFC 5246 A.4.1.
/// Hello Messages".
///
--
2.17.1.windows.2
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