AccessPress Anonymous Post Pro <= 3.1.9 - Unauthenticated Arbitrary File Upload

2017-12-19 00:00

Colette Chamberland

Strategic Overview

Status

Patched in 3.2.0

Affected Pluginaccesspress-anonymous-post-pro

Affected Version< 3.2.0

CVSS9.8Critical

CVECVE-2017-16949

View all accesspress-anonymous-post-pro vulnerabilities

Vulnerability Overview

An issue was discovered in the AccessKeys AccessPress Anonymous Post Pro plugin through 3.1.9 for WordPress. Improper input sanitization allows the attacker to override the settings for allowed file extensions and upload file size, related to inc/cores/file-uploader.php and file-uploader/file-uploader-class.php. This allows the attacker to upload anything they want to the server, as demonstrated by an action=ap_file_upload_action&allowedExtensions[]=php request to /wp-admin/admin-ajax.php that results in a .php file upload and resultant PHP code execution.

Technical Analysis

REMEDIATION: Update to version 3.2.0, or a newer patched version --- IDENTIFIER: CWE-434 (Unrestricted Upload of File with Dangerous Type) The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

External References

https://www.cve.org/CVERecord?id=CVE-2017-16949 https://www.wordfence.com/threat-intel/vulnerabilities/id/9758a59c-4370-4b26-b32a-004565f28d76

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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