From 8c346ba3b47a714bb9a8ddae5ddda1d9c2ccc978 Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Thu, 7 Jul 2016 16:35:38 +0000
Subject: [PATCH] Encrypted SSLv2 messages have no message type

---
 nselib/sslv2.lua | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/nselib/sslv2.lua b/nselib/sslv2.lua
index ff8c69888..67f2785a7 100644
--- a/nselib/sslv2.lua
+++ b/nselib/sslv2.lua
@@ -140,6 +140,7 @@ local function read_header(buffer, i)
   if msb then
     header_length = 2
     record_length = bit.band(len, 0x7fff)
+    padding_length = 0
   else
     header_length = 3
     if #buffer - i + 1 < 1 then
@@ -193,22 +194,20 @@ function record_read(buffer, i)
       connection_id = connection_id,
     }
     i = j
-  elseif h.message_type == SSL_MESSAGE_TYPES.ERROR then
+  elseif h.message_type == SSL_MESSAGE_TYPES.ERROR and h.record_length == 3 then
     local j, err = bin.unpack(">S", buffer, i)
     h.body = {
       error = SSL_ERRORS[err] or err
     }
     i = j
-  elseif h.padding_length then
+  else
+    -- TODO: Other message types?
     h.message_type = "encrypted"
     local j, data = bin.unpack("A"..h.record_length, buffer, i)
     h.body = {
       data = data
     }
     i = j
-  else
-    stdnse.debug1("Unknown message type: %s", h.message_type)
-    return i, nil
   end
   return i, h
 end