WordPress Download Manager < 3.1.23 - Arbitrary Asset Manager Usage

2021-04-30 00:00
WPScanTeam

Strategic Overview

Status
Patched in 3.1.23
Affected Plugin
Download Manager
Affected Version
< 3.1.23
CVSS
6.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE pending
View all Download Manager vulnerabilities

At a glance

This record tracks a medium-severity Missing Authorization vulnerability in the Download Manager WordPress plugin, affecting versions < 3.1.23. It carries a CVSS score of 6.3 (reachable over the network; low attack complexity). The issue is fixed in version 3.1.23; sites on affected versions should update now. Disclosed April 2021, reported by WPScanTeam.

Vulnerability Overview

The WordPress Download Manager plugin for WordPress is vulnerable to arbitrary asset manager usage in versions before 3.1.23. This is due to the same nonce being using for multiple AJAX actions. This makes it possible for authenticated attackers with low level privileges to reveal the nonce in pages available to them and use it to perform unauthorized actions.

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

Reaching this weakness in Download Manager < 3.1.23 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 Download Manager the fix is 3.1.23: builds < 3.1.23 are affected, anything from 3.1.23 onward is not.

Remediation

Update to version 3.1.23, 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: Download Manager 3.1.23 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/6d700580-1374-4a17-a6b3-59ba1d063030

Related records

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