对我来说，最糟糕的，最可怕的，最危险的，犯罪的疏忽，但在彻底破坏整个系统的安全方面，奇怪的优雅总是来自the Daily WTF:

客户端PHP

function saveform()
{
  var firstName = escapeSql(mainForm.elements.txtFirstName.value);
  var lastName = escapeSql(mainForm.elements.txtLastName.value);
  /* ... */
  var offerCode = escapeSql(mainForm.elements.txtOfferCode.value);

  var code =
  '  $cn = mssql_connect($DB_SERVER, $DB_USERNAME, $DB_PASSWORD)           ' +
  '          or die("ERROR: Cannot Connect to $DB_SERVER");                ' +
  '  $db = mssql_select_db($DB_NAME, $cn);                                 ' +
  '                                                                        ' +
  '  if (mssql_query("SELECT 1 FROM APPS WHERE SSN=\''+ssn+'\'", $cn)) ' +
  '  { $ins = false; }                                                     ' +
  '  else                                                                  ' +
  '  { $ins = true; }                                                      ' +
  '                                                                        ' +
  '  if ($ins) {                                                           ' +
  '    $sql = "INSERT INTO APPS (FIRSTNM, LASTNM, ..., OFFERCD) VALUES ("; ' +
  '    $sql+= "\''+firstName+'\',";                                        ' +
  '    $sql+= "\''+lastName+'\',";                                         ' +
  '    $sql+= "\''+offerCode+'\')";                                        ' +
  '                                                                        ' +
  '  /* ... */                                                             ' +
  '                                                                        ' +
  '  mssql_query($sql, $cn);                                               ' +
  '  mssql_close($cn);                                                     ';

  execPhp(code);
}

就盯着它看一分钟。想想你所能做的一切。女士们先生们，这是洛夫克拉夫特的杰作。

我的任务是发现一个用于报告的ODBC DSN，其中密码与用户匹配，并且用户属于数据库服务器管理组。

因此，任何具有此ODBC DSN的PC都可以使用任何ODBC兼容工具通过报表用户读取/更改所有数据(甚至更糟)。不需要授权，而且身份验证非常弱。

我在一家公立医院工作，这个软件几乎安装在该州每家政府医院的每一台电脑上，数据库服务器包含各种敏感的医疗数据(完整的患者详细信息、实验室测试结果等)。

最糟糕的是，我们悄无声息地报告了安全漏洞，然后正式报告，但在我继续在那里工作的2年里，它仍然没有修复，那已经是5年前的事了。

public class AuthenticationServlet extends HttpServlet
{
    private String userName;
    private String password;

    protected doPost(HttpServletRequest req, HttpServletResponse resp)
           throws ServletException, IOException
    {
        userName = request.getParameter("userName");
        password = request.getParameter("password");
        authenticateUser(userName,password);
        ......
    }
}

显然，正如有人在自动化负载测试中发现的那样，单例和缺乏同步会导致安全问题。

一位同学曾经不小心把密码发到了推特上……那是个很严重的安全漏洞。

About 3 years ago I built a site for a somewhat large non-profit organization in our state. When it came time to deploy the application to their web host server, I noticed an odd file named "cc.txt" or something obvious like that in their public site. It was under their web root, was getting served, and was a csv file of all their donor's names, addresses, credit card numbers, expiration dates, and CVV/CVC codes. I cannot count the number of times I brought the issue up - first to my boss, then our company accountant, the client's IT director, finally the client's President. That was 3 years ago. The file is still being served, it can even be googled. And it's been updated. I tend not to respond to their donation solicitations when I get them.

中国的过滤软件——绿坝的官方网站将服务器mod_status信息公开供公众娱乐。

好奇的人:

http://www.lssw365.net/server-status

出于某种原因，你可能想在加载后不久按下停止按钮，否则它只是说由于某种原因连接重置…