All In One WP Security & Firewall <= 4.1.2 - Captcha Bypass

2016-07-31 00:00
sumofpwn

Strategic Overview

Status
Patched in 4.1.3
Affected Plugin
All-In-One Security (AIOS) – Security and Firewall
Affected Version
<= 4.1.2
CVSS
5.3Medium
Weakness type
CWE-804 · Guessable CAPTCHA
CVE
CVE pending
View all All-In-One Security (AIOS) – Security and Firewall vulnerabilities

At a glance

This record tracks a medium-severity Guessable CAPTCHA vulnerability in the All-In-One Security (AIOS) WordPress plugin, affecting versions <= 4.1.2. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 4.1.3; sites on affected versions should update now. Disclosed July 2016, reported by sumofpwn.

Vulnerability Overview

The All In One WP Security & Firewall for WordPress is vulnerable to Captcha Bypass via multiple routes, allowing automated login attempts to proceed

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, and no interaction from a victim user.

CWE-804: Guessable CAPTCHA

The product uses a CAPTCHA challenge, but the challenge can be guessed or automatically recognized by a non-human actor.

Remediation

Update to version 4.1.3, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: All-In-One Security (AIOS) 4.1.3 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/352a0c8a-22a6-44d9-917c-5fb37569d143

Related records

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