C#: Add precision to queries

Author: calumgrant

csharp/ql/src/Security Features/CWE-020/RuntimeChecksBypass.ql

@@ -4,14 +4,11 @@
  * @kind problem
  * @id cs/serialization-check-bypass
  * @problem.severity warning
+ * @precision medium
  * @tags security
  *       external/cwe/cwe-20
  */
 
-/*
- * consider: @precision medium
- */
-
 import semmle.code.csharp.serialization.Serialization
 import semmle.code.csharp.controlflow.Guards
 

csharp/ql/src/Security Features/CWE-091/XMLInjection.ql

@@ -5,14 +5,11 @@
  * @kind problem
  * @id cs/xml-injection
  * @problem.severity error
+ * @precision high
  * @tags security
  *       external/cwe/cwe-091
  */
 
-/*
- * consider: @precision high
- */
-
 import csharp
 import semmle.code.csharp.dataflow.flowsources.Remote
 import semmle.code.csharp.frameworks.system.Xml

csharp/ql/src/Security Features/CWE-114/AssemblyPathInjection.ql

@@ -6,27 +6,14 @@
  * @kind problem
  * @id cs/assembly-path-injection
  * @problem.severity error
+ * @precision high
  * @tags security
  *       external/cwe/cwe-114
  */
 
-/*
- * consider: @precision high
- */
-
 import csharp
 import semmle.code.csharp.dataflow.flowsources.Remote
-
-class MainMethod extends Method {
-  MainMethod() {
-    this.hasName("Main") and
-    this.isStatic() and
-    (this.getReturnType() instanceof VoidType or this.getReturnType() instanceof IntType) and
-    if this.getNumberOfParameters() = 1
-    then this.getParameter(0).getType().(ArrayType).getElementType() instanceof StringType
-    else this.getNumberOfParameters() = 0
-  }
-}
+import semmle.code.csharp.commons.Util
 
 /**
  * A taint-tracking configuration for untrusted user input used to load a DLL.

csharp/ql/src/Security Features/CWE-327/InsecureSQLConnection.ql

@@ -1,17 +1,14 @@
 /**
  * @name Insecure SQL connection
- * @description Using an SQL Server connection without enforcing encryption is a security vulnerability.
+ * @description Using a SQL Server connection without enforcing encryption is a security vulnerability.
  * @kind path-problem
  * @id cs/insecure-sql-connection
  * @problem.severity error
+ * @precision medium
  * @tags security
  *       external/cwe/cwe-327
  */
 
-/*
- * consider: @precision high
- */
-
 import csharp
 import DataFlow::PathGraph