Simple Download Monitor <= 3.9.5 - Log Reset

2021-10-05 00:00
WPScanTeam

Strategic Overview

Status
Patched in 3.9.6
Affected Plugin
Simple Download Monitor
Affected Version
<= 3.9.5
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE pending
View all Simple Download Monitor vulnerabilities

At a glance

This record tracks a medium-severity Missing Authorization vulnerability in the Simple Download Monitor WordPress plugin, affecting versions <= 3.9.5. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The issue is fixed in version 3.9.6; sites on affected versions should update now. Disclosed October 2021, reported by WPScanTeam.

Vulnerability Overview

The Simple Download Monitor plugin for WordPress is vulnerable to Log Resets in versions up to, and including, 3.9.5. This is due to a lack of nonce and capability checks on the 'sdm_reset_log' AJAX action. This makes it possible for authenticated subscriber-level attackers and above (unauthenticated if performing CSRF) to reset logs within the vulnerable service.

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 interaction from a victim user.

CWE-862: Missing Authorization

Simple Download Monitor <= 3.9.5 carries this weakness at sdm_reset_log, and reaching it takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Simple Download Monitor the fix is 3.9.6: builds <= 3.9.5 are affected, anything from 3.9.6 onward is not.

Remediation

Update to version 3.9.6, 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: Simple Download Monitor 3.9.6 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/70493df9-82b8-4160-8d75-889fada7541f

Related records

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