WordPress up to 4.7.4 XML-RPC API HTTP POST Request input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in WordPress up to 4.7.4. This affects an unknown function of the component XML-RPC API. The manipulation as part of HTTP POST Request leads to input validation. This vulnerability is listed as CVE-2017-9065. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in WordPress up to 4.7.4 (Content Management System). It has been rated as critical. This issue affects an unknown code of the component XML-RPC API. The manipulation as part of a HTTP POST Request leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In WordPress before 4.7.5, there is a lack of capability checks for post meta data in the XML-RPC API.

The bug was discovered 05/16/2017. The weakness was presented 05/18/2017 by Yorick Koster (Website). It is possible to read the advisory at codex.wordpress.org. The identification of this vulnerability is CVE-2017-9065 since 05/18/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 100298 (WordPress < 4.7.5 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11813 (WordPress Prior to 4.7.5 Multiple Security Vulnerabilities).

Upgrading to 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 or 4.7.5 eliminates this vulnerability. The upgrade is hosted for download at github.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100298) and SecurityFocus (BID 98509†). See VDB-101479, VDB-101480, VDB-101481 and VDB-101482 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100298
Nessus Name: WordPress < 4.7.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703870
OpenVAS Name: Debian Security Advisory DSA 3870-1 (wordpress - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WordPress 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
Patch: github.com

Timelineinfo

05/16/2017 🔍
05/16/2017 +0 days 🔍
05/16/2017 +0 days 🔍
05/18/2017 +2 days 🔍
05/18/2017 +0 days 🔍
05/18/2017 +0 days 🔍
05/19/2017 +1 days 🔍
05/19/2017 +0 days 🔍
12/06/2022 +2027 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: e88a48a066ab2200ce3091b131d43e2fab2460a4
Researcher: Yorick Koster
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-9065 (🔍)
GCVE (CVE): GCVE-0-2017-9065
GCVE (VulDB): GCVE-100-101483

OVAL: 🔍

SecurityFocus: 98509 - WordPress Prior to 4.7.5 Multiple Security Vulnerabilities
SecurityTracker: 1038520

See also: 🔍

Entryinfo

Created: 05/19/2017 09:10
Updated: 12/06/2022 15:56
Changes: 05/19/2017 09:10 (79), 06/07/2020 21:30 (3), 12/25/2020 07:46 (2), 12/06/2022 15:56 (4)
Complete: 🔍
Cache ID: 216::103

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