Digital Climate Strike WP <= 1.0.0 - Malicious Redirect

2021-01-21 00:00
Steve Perry

Strategic Overview

Status
Unpatched
Affected Version
<= 1.0.0
CVSS
7.1High
Weakness type
CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
CVE
CVE pending
View all Digital Climate Strike WP vulnerabilities

At a glance

This record tracks a high-severity URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the Digital Climate Strike WP WordPress plugin, affecting versions <= 1.0.0. It carries a CVSS score of 7.1 (reachable over the network; low attack complexity). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed January 2021, reported by Steve Perry.

Vulnerability Overview

The Digital Climate Strike WP for WordPress contains a malicious redirect in versions up to, and including, 1.0.0. This is due to a compromised JS asset in the https://assets.digitalclimatestrike.net/widget.js file. This makes it possible for unauthenticated attackers to redirect all traffic on the site to a malicious target

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

Reaching this weakness in Digital Climate Strike WP <= 1.0.0 takes a caller who can reach the endpoint. An open redirect is a page that takes a destination from the request and sends the browser there without checking that the destination belongs to the site.

A link that starts on a trusted domain finishes on an attacker's, which is what makes phishing and consent-screen abuse credible to the person clicking it. No fixed build of this plugin is recorded for Digital Climate Strike WP yet, so installs running <= 1.0.0 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to Digital Climate Strike WP: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Firewall
  • Alerts

External References

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C