"select * from LoginMaster where UserId='" + txtUserId.Text + "' 

                           and Password='" + txtPassword.Text + "';"

我曾在一个经营直销业务的生产网站上看到过这种情况。上面的Sql语句非常非常容易受到Sql注入的攻击。

我还将在这里列出HACME银行。根据网站Hacme银行是:

Hacme Bank™ is designed to teach application developers, programmers, architects and security professionals how to create secure software. Hacme Bank simulates a "real-world" web services-enabled online banking application, which was built with a number of known and common vulnerabilities. This allows users to attempt real exploits against a web application and thus learn the specifics of the issue and how best to fix it. The web services exposed by Hacme Bank are used by our other testing applications including Hacme Books and Hacme Travel.

测试一些银行柜员软件后，我打电话给技术部安排了一次拨号IP会话。“您想连接到哪个系统，生产系统还是测试系统?”

真实的故事。

我们有一个旧的计算机集群，在我工作的一个实验室里没有运行。几个本科生认为，让它运行起来会很有趣，这样他们就可以学习一点并行计算了。他们让它运行起来，结果证明它非常有用。

One day I came in and was checking out the stats...It was running at 100%. Now this was a 24 node cluster and there were only 3 of us that ever used it so it was a little strange that it was running at this load. I started playing with it, trying to figure out what was loading it...turned out someone had gained access and was using it as their own little porn server and spammer. I asked the undergrads what kind of security they put on it, they looked at me and said "Security? We didn't think it would need any."

我给它加了个密码，就这样。把它用作色情服务器的人原来是一个本科生的朋友。

在PHP中，这是在第一个包含文件:

extract($_GET);
extract($_POST);

它允许覆盖未被_GET或_POST调用的变量。

我的一个朋友曾经知道一个站点将SQL查询作为GET参数传递。你知道有些人会拿这个开玩笑。

我所见过的最糟糕的安全漏洞是，人们在firefox账户上不使用主密码，即使他们让它保存了所有的密码。这意味着任何能拿到你账户文件的人都能窃取你所有的密码。使用主密码。

我曾经忘记删除“管理员登录页面”。该页面只是绕过LDAP登录并获得所有权限。它可以对客户的银行账户做任何事情。我非常非常担心。幸运的是，没有人知道URL。