JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.

If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.

If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.

CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
C#


CSHARP.INSEC.LDAP.ANON : Anonymous LDAP Authentication (C#)

要旨

LDAP authentication is set to anonymous, thus compromising security.

This checker identifies security issues related to authentication procedures, such as using no password for LDAP authentication or using the host name in conditions.

プロパティ

クラス名 Anonymous LDAP Authentication (C#)
日本語クラス名 Anonymous LDAP Authentication (C#)
クラス分類 セキュリティ (security)
ニーモニック CSHARP.INSEC.LDAP.ANON
カテゴリー
CWE CWE:1390 Weak Authentication
OWASP-2017 OWASP-2017:A2 Broken authentication
OWASP-2021 OWASP-2021:A7 Identification and authorization failures
OWASP-2025 OWASP-2025:A07 Authentication Failures
対応言語 C# で利用可能です。
有効/無効設定 このワーニングクラスのチェックはデフォルトで有効になっています。チェックを無効にするにはプロジェクト設定ファイル (configuration file)に以下の WARNING_FILTER ルールを追加してください。
WARNING_FILTER += discard class="Anonymous LDAP Authentication (C#)"

using com.juliasoft.julia.checkers;
using System;
using System.DirectoryServices;
using System.Net;

namespace DocumentationExamples
{

  public class Authentication
  {
    [SuppressJuliaWarnings(Value = new string[] { "production", "basicnullness", "shortcircuit", "nullness" })]
    public static void Main(string[] args)
    {
      bool found = false;
      IPAddress[] addrs = Dns.GetHostAddresses("www.example.com");
      foreach (IPAddress addr in addrs)
      {
        // these call to ToString() get compiled as Object.ToString(). Hence, these warnings appear
        // only if System.Net.dll is submittet as a library. Otherwise, the analyzer cannot link these call
        // to the actual one that is annotated inside the wizards
        if (addr.ToString().Equals("231.13.35.1"))                                   // Hostname in Condition (C#) warning issued here
          found = true;
        else if ("112.34.5.103".Equals(addr.ToString()))                             // Hostname in Condition (C#) warning issued here
          found = true;
        found |= addr.ToString().StartsWith("131.");                                 // Hostname in Condition (C#) warning issued here
      }
      if (found)
        Console.WriteLine("OK");

      DirectoryEntry dir = new DirectoryEntry("ldap://localhost:389/o=JNDITutorial") // Anonymous LDAP Authentication (C#)
                                                                                     //  warning issued here - LDAP password is set to none
      {
        AuthenticationType = AuthenticationTypes.None
      };
      DirectorySearcher searcher = new DirectorySearcher(dir)
      {
        PageSize = int.MaxValue,
        Filter = "(&(objectCategory=person)(objectClass=user)(sAMAccountName=AnAccountName))"
      };
      searcher.PropertiesToLoad.Add("sn");
      searcher.FindOne();
    }
  }
}

解決法

Check if the warning actually corresponds to a real security issue related to authentication and, if that is the case, use a more secure authentication procedure.

関連のある設定ファイルパラメータ

設定ファイルの以下のパラメータがこのワーニングクラスのチェックに影響します。

 

To report problems with this documentation, please visit https://support.codesecure.com/.