WordPress up to 4.4.1 wp-includes/http.php wp_http_validate_url server-side request forgery

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8.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in WordPress up to 4.4.1. This affects the function wp_http_validate_url of the file wp-includes/http.php. Such manipulation leads to server-side request forgery. This vulnerability is traded as CVE-2016-2222. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in WordPress up to 4.4.1 (Content Management System) and classified as critical. Affected by this issue is the function wp_http_validate_url of the file wp-includes/http.php. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was shared 05/22/2016 (Website). The advisory is shared for download at wordpress.org. This vulnerability is handled as CVE-2016-2222 since 02/04/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

By approaching the search of inurl:wp-includes/http.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 88766 (Debian DLA-418-1 : wordpress security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11573 (WordPress Prior to 4.4.2 Multiple Vulnerabilities).

Upgrading to version 3.7.13, 3.8.13, 3.9.11, 4.0.10, 4.1.10, 4.2.7, 4.3.3 or 4.4.2 eliminates this vulnerability. The upgrade is hosted for download at core.trac.wordpress.org. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (88766) and SecurityFocus (BID 82454†). hackerone.com is providing further details. The entry VDB-87583 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Content Management System

Name

• WordPress

Version

• 3.7
• 3.7 Beta1
• 3.7 Beta2
• 3.7 rc1
• 3.7 rc2
• 3.7.1
• 3.7.2
• 3.7.3
• 3.7.4
• 3.7.5
• 3.7.6
• 3.7.7
• 3.7.8
• 3.7.9
• 3.7.10
• 3.7.11
• 3.7.12
• 3.8
• 3.8 Beta1
• 3.8 rc1
• 3.8 rc2
• 3.8.1
• 3.8.1 rc1
• 3.8.2
• 3.8.3
• 3.8.4
• 3.8.5
• 3.8.6
• 3.8.7
• 3.8.8
• 3.8.9
• 3.8.10
• 3.8.11
• 3.8.12
• 3.9
• 3.9 Beta1
• 3.9 Beta2
• 3.9 Beta3
• 3.9 rc1
• 3.9 rc2
• 3.9.0
• 3.9.1
• 3.9.1 rc1
• 3.9.2
• 3.9.3
• 3.9.4
• 3.9.5
• 3.9.6
• 3.9.7
• 3.9.8
• 3.9.9
• 3.9.10
• 4.0
• 4.0 Beta1
• 4.0 Beta2
• 4.0 Beta3
• 4.0 Beta4
• 4.0 rc1
• 4.0 rc2
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.5
• 4.0.6
• 4.0.7
• 4.0.8
• 4.0.9
• 4.1
• 4.1 Beta1
• 4.1 Beta2
• 4.1 rc1
• 4.1 rc2
• 4.1 rc3
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.1.7
• 4.1.8
• 4.1.9
• 4.2
• 4.2 Beta1
• 4.2 Beta2
• 4.2 Beta3
• 4.2 Beta4
• 4.2 rc1
• 4.2 rc2
• 4.2 rc3
• 4.2 rc4
• 4.2.1
• 4.2.2
• 4.2.3
• 4.2.4
• 4.2.4 rc1
• 4.2.5
• 4.2.6
• 4.3
• 4.3 Beta1
• 4.3 Beta2
• 4.3 Beta3
• 4.3 Beta4
• 4.3 rc1
• 4.3 rc2
• 4.3 rc3
• 4.3.0
• 4.3.1
• 4.3.2
• 4.4
• 4.4 Beta1
• 4.4 Beta2
• 4.4 Beta3
• 4.4 Beta4
• 4.4 rc1
• 4.4.0
• 4.4.1

License

• open-source

Website

• Product: https://wordpress.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 88766
Nessus Name: Debian DLA-418-1 : wordpress security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703472
OpenVAS Name: Debian Security Advisory DSA 3472-1 (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 3.7.13/3.8.13/3.9.11/4.0.10/4.1.10/4.2.7/4.3.3/4.4.2

Timelineinfo

02/02/2016 🔍
02/04/2016 +2 days 🔍
02/16/2016 +12 days 🔍
02/17/2016 +1 days 🔍
05/21/2016 +94 days 🔍
05/22/2016 +1 days 🔍
05/23/2016 +1 days 🔍
08/21/2022 +2281 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: 36435
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-2222 (🔍)
GCVE (CVE): GCVE-0-2016-2222
GCVE (VulDB): GCVE-100-87584
SecurityFocus: 82454 - WordPress Prior to 4.4.2 Server Side Request Forgery Security Bypass Vulnerability
SecurityTracker: 1034933

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 05/23/2016 10:33
Updated: 08/21/2022 15:28
Changes: 05/23/2016 10:33 (66), 05/08/2019 13:15 (14), 08/21/2022 15:28 (4)
Complete: 🔍
Cache ID: 216::103

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Discussion

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