我通过更改ServerFault beta访问cookie的域进入http://dev.superuser.com/。(他们现在已经修好了)

微软鲍勃 (来源:Dan's 20th Century Abandonware)

如果您第三次输入密码错误，系统将询问您是否忘记密码。

http://img132.yfrog.com/img132/8397/msbob10asignin15.gif

但是，你可以输入任何新密码，它会替换原来的密码，而不是像继续提示输入正确的密码，直到输入正确的密码，或者在多次尝试错误后锁定你!任何人都可以用任何密码“保护”的Microsoft Bob帐户这样做。

不需要事先进行身份验证。 他的意思是，用户1只需要三次输入密码错误，然后第四次输入新密码就可以更改自己的密码，而不必使用“更改密码”。

这也意味着User1可以修改User2, User3…以完全相同的方式。任何用户都可以更改其他用户的密码，只要输入三次错误密码，然后在出现提示时输入新密码，然后他们就可以访问该帐户。

http://img132.yfrog.com/img132/9851/msbob10asignin16.gif

Windows 95可以选择需要密码才能解锁屏幕保护程序。然而，使用ctrl+alt+del你可以杀死屏幕保护程序。

我不知道这是不是最糟糕的，因为我见过一些非常糟糕的，但是:

几年前，我工作的地方引进了一个叫做FOCUS的系统。不知道它还在不在。它非常适合做报告，我们开发并教了大约一千两个非It人员如何生成他们自己的报告。非常方便。他们可以做基本的报告，一些人可以做中等难度的工作，IT可以帮助处理较难的工作。

所有用于报告的数据都被定期复制到FOCUS自己格式的影子数据库中。对于更敏感的数据，我们设置安全选项，加密数据。一切都很好。

So, one day my boss calls me in, and we've lost the password to one of the sensitive databases. It's going to be hard to reproduce the data in this case, so he asks me to see if I can break the security. I had no experience as a hacker, so it took me about 5 or 6 hours to hand him the password. I started by creating some test files, and encrypting them with different passwords. I found that changing one character in the password would change two bytes in the encrypted file, specifically, the high nybble of one byte, and the low nybble of another byte. Hmmmm, says I. Sure enough, they stored the password somewhere in the first 80 bytes of the encrypted, but obfuscated the password by splitting the bytes into nybbles, and storing them in predictable places.

不久之后，我们就编写了一个REXX脚本，该脚本在VM/CMS系统下运行，可以告诉我们任何加密数据库的密码。

那是很久以前的事了——在90年代初，我相信他们已经解决了这个问题。嗯，非常确定。

最不可原谅的安全漏洞，不幸的是，一个非常常见和容易找到的漏洞，是谷歌黑客。举个例子:

http://www.google.com/search?q=inurl%3Aselect+inurl%3A%2520+inurl%3Afrom+inurl%3Awhere

令人惊讶的是，互联网上有多少页面，特别是政府网站，通过查询字符串传递SQL查询。这是最糟糕的SQL注入形式，查找易受攻击的站点毫不费力。

经过一些小的调整，我已经能够找到未受保护的phpMyAdmin安装，未受保护的MySQL安装，查询包含用户名和密码的字符串，等等。

Right at the start of the .com era, I was working for a large retailer overseas. We watched with great interest as our competitors launched an online store months before us. Of course, we went to try it out... and quickly realized that our shopping carts were getting mixed up. After playing with the query string a bit, we realized we could hijack each other's sessions. With good timing, you could change the delivery address but leave the payment method alone... all that after having filled the cart with your favorite items.