Land #19012, Fix/dns/dot suffixed names

Author: adfoster-r7

Gemfile.lock

@@ -419,7 +419,7 @@ GEM
       metasm
       rex-core
       rex-text
-    rex-socket (0.1.56)
+    rex-socket (0.1.57)
       rex-core
     rex-sslscan (0.1.10)
       rex-core

LICENSE_GEMS

@@ -149,7 +149,7 @@ rex-powershell, 0.1.99, "New BSD"
 rex-random_identifier, 0.1.11, "New BSD"
 rex-registry, 0.1.5, "New BSD"
 rex-rop_builder, 0.1.5, "New BSD"
-rex-socket, 0.1.56, "New BSD"
+rex-socket, 0.1.57, "New BSD"
 rex-sslscan, 0.1.10, "New BSD"
 rex-struct2, 0.1.4, "New BSD"
 rex-text, 0.2.56, "New BSD"

lib/rex/proto/dns/resolver.rb

@@ -84,8 +84,15 @@ def initialize(config = {})
           raise ResolverArgumentError, "Option #{key} not valid"
         end
       end
+
       self.static_hostnames = StaticHostnames.new(hostnames: static_hosts)
-      self.static_hostnames.parse_hosts_file
+      begin
+        self.static_hostnames.parse_hosts_file
+      rescue StandardError => e
+        @logger.error 'Failed to parse the hosts file, ignoring it'
+        # if the hosts file is corrupted, just use a default instance with any specified hostnames
+        self.static_hostnames = StaticHostnames.new(hostnames: static_hosts)
+      end
     end
     #
     # Provides current proxy setting if configured