WordPress Core < 4.6.1 - Authenticated Directory Traversal to Arbitrary File Access

2016-09-07 00:00

Dominik Schilling

Strategic Overview

Status

Patched in 3.7.16

Affected CoreWordPress 4.6

Affected Version3.7 – 4.6 · 11 branches

CVSS6.5Medium

CVECVE-2016-7169

View all WordPress 4.6 vulnerabilities

Vulnerability Overview

Directory traversal vulnerability in the File_Upload_Upgrader class in wp-admin/includes/class-file-upload-upgrader.php in the upgrade package uploader in WordPress before 4.6.1 allows remote authenticated users to access arbitrary files via a crafted urlholder parameter.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.16, 3.8.16, 3.9.14, 4.0.13, 4.1.13, 4.2.10, 4.3.6, 4.4.5, 4.5.4, 4.6.1 --- 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-2016-7169 https://www.wordfence.com/threat-intel/vulnerabilities/id/0f19194c-dbe8-455d-bee7-2f7d4ce9224f

CVSS Vector

6.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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