#WordPress weather map plugin attack detected in #wordfence live traffic

By | January 10, 2018

Going through my Wordfence live traffic view is a nice way to see the daily fad of Chinese script kiddies.

WordPress is one of the main targets of people trying to access your data. Obviously if you have a blog you must be sure you run an A+ certified security setup. See my other posts for this:
Security: Maintaining a secure WordPress blog
“A” Rating Security – Strong SSL Security WordPress Blog

Today I got this nice request repeated several times from several China IPs.

Let’s make a quick check of the request:

STEP 1: The attack vector:
It seems there is a vulnerability in one of the weather PHP plugins Cacti that can be installed on a WordPress site. The hint is in the URL path:

It seems that this plugin has a conn.php that is not doing any escaping of parameters so being open to cross site scripting attack. Maybe a known issue no longer valid in newer versions but still valid for a lot of installs.

STEP 2: The attack load

This is an interesting attack load that is targeted for Linux. This is a clear indication that the attacker is checking the OS of the target.
The whole string is a sequence of Linux command line items.

First a file is downloaded from a repository machine.

The machine is listed as an attack vector site

The downloaded binary is made executable:

The binary is executed:

Probably the binary is a ransom-ware or crypto-mining binary.

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