WordPress up to 4.4.2 Intranet Address improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in WordPress. Affected by this vulnerability is an unknown functionality of the component Intranet Address Handler. This manipulation causes improper authorization. This vulnerability is tracked as CVE-2016-4029. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in WordPress (Content Management System) and classified as critical. Affected by this vulnerability is some unknown processing of the component Intranet Address Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

WordPress before 4.5 does not consider octal and hexadecimal IP address formats when determining an intranet address, which allows remote attackers to bypass an intended SSRF protection mechanism via a crafted address.

The weakness was disclosed 08/07/2016 (Website). It is possible to read the advisory at codex.wordpress.org. This vulnerability is known as CVE-2016-4029 since 04/15/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 93667 (Debian DLA-633-1 : 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 11826 (WordPress Prior to 4.5 Multiple Security Vulnerabilities).

Upgrading to version 4.5 eliminates this vulnerability. The upgrade is hosted for download at github.com. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93667) and SecurityTracker (ID 1036594†). The entries VDB-90673, VDB-90674, VDB-95029 and VDB-95030 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
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: 93667
Nessus Name: Debian DLA-633-1 : wordpress security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 831126
OpenVAS Name: WordPress Core Multiple Vulnerabilities May16 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: WordPress 4.5

Timelineinfo

04/15/2016 🔍
08/07/2016 +114 days 🔍
08/07/2016 +0 days 🔍
08/08/2016 +1 days 🔍
08/11/2016 +3 days 🔍
09/22/2016 +42 days 🔍
09/23/2016 +1 days 🔍
05/08/2019 +957 days 🔍

Sourcesinfo

Product: wordpress.com

Advisory: codex.wordpress.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-4029 (🔍)
GCVE (CVE): GCVE-0-2016-4029
GCVE (VulDB): GCVE-100-90607

OVAL: 🔍

SecurityTracker: 1036594

See also: 🔍

Entryinfo

Created: 08/08/2016 15:18
Updated: 05/08/2019 13:04
Changes: 08/08/2016 15:18 (71), 05/08/2019 13:04 (10)
Complete: 🔍
Cache ID: 216:AA6:103

Be aware that VulDB is the high quality source for vulnerability data.

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