diff --git a/lib/core/session.py b/lib/core/session.py
index 278d9400f..7790545c0 100644
--- a/lib/core/session.py
+++ b/lib/core/session.py
@@ -20,6 +20,7 @@ from lib.core.data import conf
 from lib.core.data import kb
 from lib.core.data import logger
 from lib.core.datatype import injectionDict
+from lib.core.enums import DBMS
 from lib.core.enums import PAYLOAD
 from lib.core.enums import PLACE
 from lib.core.settings import METADB_SUFFIX
@@ -237,9 +238,10 @@ def resumeConfKb(expression, url, value):
 
     elif expression == "TABLE_EXISTS" and url == conf.url:
         table = unSafeFormatString(value[:-1])
+        split = '..' if Backend.getIdentifiedDbms() in (DBMS.MSSQL, DBMS.SYBASE) else '.'
 
-        if '.' in table:
-            db, table = table.split('.')
+        if split in table:
+            db, table = table.split(split)
         else:
             db = "%s%s" % (Backend.getIdentifiedDbms(), METADB_SUFFIX)
 
@@ -252,9 +254,10 @@ def resumeConfKb(expression, url, value):
     elif expression == "COLUMN_EXISTS" and url == conf.url:
         table, column = unSafeFormatString(value[:-1]).split('|')
         colName, colType = column.split(' ')
+        split = '..' if Backend.getIdentifiedDbms() in (DBMS.MSSQL, DBMS.SYBASE) else '.'
 
-        if '.' in table:
-            db, table = table.split('.')
+        if split in table:
+            db, table = table.split(split)
         else:
             db = "%s%s" % (Backend.getIdentifiedDbms(), METADB_SUFFIX)
 
diff --git a/lib/request/inject.py b/lib/request/inject.py
index 06f322255..7a25d1c25 100644
--- a/lib/request/inject.py
+++ b/lib/request/inject.py
@@ -502,4 +502,8 @@ def goStacked(expression, silent=False):
     Request.queryPage(payload, content=False, silent=silent, noteResponseTime=False, timeBasedCompare=True)
 
 def checkBooleanExpression(expression, expectingNone=True):
-    return getValue(unescaper.unescape(expression), expected=EXPECTED.BOOL, suppressOutput=True, expectingNone=expectingNone)
+    kb.suppressSession = True
+    value = getValue(unescaper.unescape(expression), expected=EXPECTED.BOOL, suppressOutput=True, expectingNone=expectingNone)
+    kb.suppressSession = False
+
+    return value
diff --git a/lib/techniques/brute/use.py b/lib/techniques/brute/use.py
index a18385eef..8574e6270 100644
--- a/lib/techniques/brute/use.py
+++ b/lib/techniques/brute/use.py
@@ -55,7 +55,6 @@ def tableExists(tableFile, regex=None):
     tbllock = threading.Lock()
     iolock = threading.Lock()
     kb.threadContinue = True
-    kb.suppressSession = True
 
     def tableExistsThread():
         while count[0] < length and kb.threadContinue:
@@ -131,7 +130,6 @@ def tableExists(tableFile, regex=None):
     finally:
         kb.threadContinue = True
         kb.threadException = False
-        kb.suppressSession = False
 
     clearConsoleLine(True)
     dataToStdout("\n")
@@ -171,7 +169,6 @@ def columnExists(columnFile, regex=None):
     collock = threading.Lock()
     iolock = threading.Lock()
     kb.threadContinue = True
-    kb.suppressSession = True
 
     def columnExistsThread():
         while count[0] < length and kb.threadContinue:
@@ -238,7 +235,6 @@ def columnExists(columnFile, regex=None):
     finally:
         kb.threadContinue = True
         kb.threadException = False
-        kb.suppressSession = False
 
     clearConsoleLine(True)
     dataToStdout("\n")