false positives may be possible, however we restricted it to http status 200 and post requests, based on the poc. upon investigation review the post body for the actual payload - or command - being executed.

Techniques

T1190

Sample rules

WordPress Bricks Builder plugin RCE

source: splunk
technicques:
- T1190

Description

The following analytic identifies potential exploitation of the WordPress Bricks Builder plugin RCE vulnerability. The search is focused on the URL path “/wp-json/bricks/v1/render_element” with a status code of 200 and a POST method. It has been addressed by the theme developers in version 1.9.6.1 released on February 13, 2024. The vulnerability is tracked as CVE-2024-25600. The POC exploit is simple enough and will spawn commands on the target server. The exploit is actively being used in the wild.

Detection logic


| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Web where Web.url IN ("*/wp-json/bricks/v1/render_element") Web.status=200 Web.http_method=POST by Web.src, Web.dest, Web.http_user_agent, Web.url, Web.uri_path, Web.status, Web.http_method, sourcetype, source 
| `drop_dm_object_name("Web")` 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)` 
| `wordpress_bricks_builder_plugin_rce_filter`