diff --git a/extra/vulnserver/vulnserver.py b/extra/vulnserver/vulnserver.py
index 694761615..e889cfaf6 100644
--- a/extra/vulnserver/vulnserver.py
+++ b/extra/vulnserver/vulnserver.py
@@ -133,7 +133,9 @@ class ReqHandler(BaseHTTPRequestHandler):
                 self.send_response(OK)
                 self.send_header("Content-type", "text/html")
                 self.send_header("Connection", "close")
-                self.end_headers()
+
+                if not self.raw_requestline.startswith(b"HEAD"):
+                    self.end_headers()
 
                 try:
                     with _lock:
@@ -152,7 +154,11 @@ class ReqHandler(BaseHTTPRequestHandler):
                 except Exception as ex:
                     output = "%s: %s" % (re.search(r"'([^']+)'", str(type(ex))).group(1), ex)
 
-                self.wfile.write(output.encode("utf8"))
+                if self.raw_requestline.startswith(b"HEAD"):
+                    self.send_header("Content-Length", str(len(output)))
+                    self.end_headers()
+                else:
+                    self.wfile.write(output.encode("utf8"))
         else:
             self.send_response(NOT_FOUND)
             self.send_header("Connection", "close")
@@ -164,6 +170,9 @@ class ReqHandler(BaseHTTPRequestHandler):
     def do_PUT(self):
         self.do_REQUEST()
 
+    def do_HEAD(self):
+        self.do_REQUEST()
+
     def do_POST(self):
         length = int(self.headers.get("Content-length", 0))
         if length:
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 60fbbc614..28a2fb830 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.3.11.48"
+VERSION = "1.3.11.49"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/lib/core/testing.py b/lib/core/testing.py
index de8acfcfe..14da34527 100644
--- a/lib/core/testing.py
+++ b/lib/core/testing.py
@@ -69,6 +69,7 @@ def vulnTest():
         ("--flush-session --method=PUT --data='a=1&b=2&c=3&id=1' --skip-static --dump -T users --start=1 --stop=2", ("might be injectable", "Parameter: id (PUT)", "Type: boolean-based blind", "Type: time-based blind", "Type: UNION query", "2 entries")),
         ("--flush-session -H 'id: 1*' --tables", ("might be injectable", "Parameter: id #1* ((custom) HEADER)", "Type: boolean-based blind", "Type: time-based blind", "Type: UNION query", " users ")),
         ("--flush-session --cookie=\"PHPSESSID=d41d8cd98f00b204e9800998ecf8427e; id=1*; id2=2\" --tables --union-cols=3", ("might be injectable", "Cookie #1* ((custom) HEADER)", "Type: boolean-based blind", "Type: time-based blind", "Type: UNION query", " users ")),
+        ("--flush-session --null-connection --technique=B --banner", ("NULL connection is supported with HEAD method", "banner: '3")),
         ("--flush-session --parse-errors --eval=\"id2=2\" --referer=\"localhost\"", ("might be injectable", ": syntax error", "back-end DBMS: SQLite", "3 columns")),
         ("--banner --schema --dump -T users --binary-fields=surname --where \"id>3\"", ("banner: '3", "INTEGER", "TEXT", "id", "name", "surname", "2 entries", "6E616D6569736E756C6C")),
         ("--all --tamper=between,randomcase", ("5 entries", "Type: boolean-based blind", "Type: time-based blind", "Type: UNION query", "luther", "blisset", "fluffy", "179ad45c6ce2cb97cf1029e212046e81", "NULL", "nameisnull", "testpass")),