WordPress Core < 4.7.5 - Server-Side Request Forgery

2017-05-16 00:00

Ronnie Skansing

Strategic Overview

Status

Patched in 3.7.21

Affected CoreWordPress 4.7

Affected Version3.7 – 4.7.4 · 12 branches

CVSS7.7High

CVECVE-2017-9066

View all WordPress 4.7 vulnerabilities

Vulnerability Overview

In WordPress before 4.7.5, there is insufficient redirect validation in the HTTP class, leading to SSRF.

Technical Analysis

REMEDIATION: Update to one of the following versions, or a newer patched version: 3.7.21, 3.8.21, 3.9.19, 4.0.18, 4.1.18, 4.2.15, 4.3.11, 4.4.10, 4.5.9, 4.6.6, 4.7.5 --- 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-2017-9066 https://www.wordfence.com/threat-intel/vulnerabilities/id/d357f92a-3c20-4972-af4d-65053027d31c

CVSS Vector

7.7

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

Base

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

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