WP-DBManager <= 2.79.1 - Directory Traversal Allowing Arbitrary File Deletion

2018-10-22 00:00
RIPS Technologies

Strategic Overview

Status
Patched in 2.79.2
Affected Plugin
WP-DBManager
Affected Version
< 2.79.2
CVSS
8.7High
Weakness type
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE
CVE pending
View all WP-DBManager vulnerabilities

At a glance

This record tracks a high-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the WP-DBManager WordPress plugin, affecting versions < 2.79.2. It carries a CVSS score of 8.7 (reachable over the network; low attack complexity; high integrity, availability impact). The issue is fixed in version 2.79.2; sites on affected versions should update now. Disclosed October 2018, reported by RIPS Technologies.

Vulnerability Overview

The WP-DBManager plugin for WordPress is vulnerable to Directory Traversal allowing arbitrary file deletion in versions up to, and including, 2.79.1. This allows authenticated high-privilege attackers to delete arbitrary files, which can be used to reset a site and gain administrative access.

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. A successful exploit has high impact on integrity, availability.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Reaching this weakness in WP-DBManager < 2.79.2 takes a caller who can reach the endpoint. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For WP-DBManager the fix is 2.79.2: builds < 2.79.2 are affected, anything from 2.79.2 onward is not.

Remediation

Update to version 2.79.2, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to WP-DBManager: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP-DBManager 2.79.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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