From 02b00238a28d775c3aa361880436d419a4f3dede Mon Sep 17 00:00:00 2001
From: dmiller <dmiller@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Wed, 17 Oct 2018 20:21:04 +0000
Subject: [PATCH] Add a new vulns state, UNKNOWN, for cases where vulnerability
 cannot be ruled out.

---
 nselib/vulns.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nselib/vulns.lua b/nselib/vulns.lua
index bf84914bf..3cc8da462 100644
--- a/nselib/vulns.lua
+++ b/nselib/vulns.lua
@@ -388,6 +388,7 @@ STATE = {
   VULN = 0x04,
   DoS = 0x08,
   EXPLOIT = 0x10,
+  UNKNOWN = 0x20,
 }
 
 -- The vulnerability messages.
@@ -399,6 +400,7 @@ STATE_MSG = {
   [STATE.EXPLOIT] = 'VULNERABLE (Exploitable)',
   [STATE.DoS | STATE.VULN] = 'VULNERABLE (DoS)',
   [STATE.EXPLOIT | STATE.VULN] = 'VULNERABLE (Exploitable)',
+  [STATE.UNKNOWN] = 'UNKNOWN (unable to test)',
 }
 
 -- Scripts must provide the correct risk factor string.