CVE-2023-34373

Zephyr Project Manager <= 3.3.93 - Cross-Site Request Forgery

2023-06-13 00:00
Theodoros Malachias

Strategic Overview

Status
Patched in 3.3.94
Affected Plugin
Zephyr Project Manager
Affected Version
<= 3.3.93
CVSS
4.3Medium
Weakness type
CWE-352 · Cross-Site Request Forgery (CSRF)
CVE
CVE-2023-34373
View all Zephyr Project Manager vulnerabilities

At a glance

CVE-2023-34373 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Zephyr Project Manager WordPress plugin, affecting versions <= 3.3.93. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.3.94; sites on affected versions should update now. Disclosed June 2023, reported by Theodoros Malachias.

Vulnerability Overview

The Zephyr Project Manager plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.3.93. This is due to missing or incorrect nonce validation in the ~/templates/settings.php file. This makes it possible for unauthenticated attackers to delete all plugin data via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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-352: Cross-Site Request Forgery (CSRF)

Reaching this weakness in Zephyr Project Manager <= 3.3.93 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Zephyr Project Manager the fix is 3.3.94: builds <= 3.3.93 are affected, anything from 3.3.94 onward is not.

Remediation

Update to version 3.3.94, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Zephyr Project Manager: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Zephyr Project Manager 3.3.94 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-34373https://www.wordfence.com/threat-intel/vulnerabilities/id/236387f0-b58e-4ef1-b370-a0703a7902ebhttps://nvd.nist.gov/vuln/detail/CVE-2023-34373

Related records

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