WordPress Core < 4.4.2 - Server-Side Request Forgery

2016-02-02 00:00

Ronnie Skansing

Strategic Overview

Status

Patched in 3.7.13

Affected CoreWordPress 4.4

Affected Version3.7 – 4.4.1 · 9 branches

CVSS6.4Medium

CVECVE-2016-2222

View all WordPress 4.4 vulnerabilities

Vulnerability Overview

The wp_http_validate_url function in wp-includes/http.php in WordPress before 4.4.2 allows remote attackers to conduct server-side request forgery (SSRF) attacks via a zero value in the first octet of an IPv4 address in the u parameter to wp-admin/press-this.php.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.13, 3.8.13, 3.9.11, 4.0.10, 4.1.10, 4.2.7, 4.3.3, 4.4.2 --- IDENTIFIER: CWE-918 (Server-Side Request Forgery (SSRF)) The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

External References

https://www.cve.org/CVERecord?id=CVE-2016-2222 https://www.wordfence.com/threat-intel/vulnerabilities/id/1351cd6b-ae22-4363-b36b-f892c504f5d9

CVSS Vector

6.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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