Backup Migration <= 1.3.9 - Unauthenticated Path Traversal to Arbitrary File Deletion

2023-12-22 00:00

Hiroho Shimada

Strategic Overview

Status

Patched in 1.4.0

Affected PluginBackup Migration

Affected Version<= 1.3.9

CVSS9.8Critical

CVECVE-2023-6972

View all Backup Migration vulnerabilities

Vulnerability Overview

The Backup Migration plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.3.9 via the 'content-backups' and 'content-name', 'content-manifest', or 'content-bmitmp' and 'content-identy' HTTP headers. This makes it possible for unauthenticated attackers to delete arbitrary files, including the wp-config.php file, which can make site takeover and remote code execution possible.

Technical Analysis

REMEDIATION: Update to version 1.4.0, or a newer patched version --- IDENTIFIER: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

External References

https://www.cve.org/CVERecord?id=CVE-2023-6972 https://www.wordfence.com/threat-intel/vulnerabilities/id/0a3ae696-f67d-4ed2-b307-d2f36b6f188c

CVSS Vector

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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