Joomla CMS up to 3.6.4 registration.php access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Joomla CMS up to 3.6.4. It has been declared as critical. This vulnerability affects unknown code of the file components/com_users/models/registration.php. The manipulation results in access control. This vulnerability was named CVE-2016-9838. The attack may be performed from remote. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Joomla CMS up to 3.6.4 (Content Management System). Affected is some unknown processing of the file components/com_users/models/registration.php. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in components/com_users/models/registration.php in Joomla! before 3.6.5. Incorrect filtering of registration form data stored to the session on a validation error enables a user to gain access to a registered user's account and reset the user's group mappings, username, and password, as demonstrated by submitting a form that targets the `registration.register` task.

The weakness was presented 12/16/2016 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2016-9838. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. By approaching the search of inurl:components/com_users/models/registration.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 95916 (Joomla! < 3.6.5 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11742 (Joomla! Core Privilege Escalation Vulnerability [20161201]).

Upgrading to version 3.6.5 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (41157), Tenable (95916) and SecurityFocus (BID 94893†). See VDB-93961 and VDB-94547 for similar entries. Once again VulDB remains the best source 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: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 95916
Nessus Name: Joomla! < 3.6.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 830864
OpenVAS Name: Joomla Core Privilege Escalation Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CMS 3.6.5

Timelineinfo

12/05/2016 🔍
12/16/2016 +11 days 🔍
12/16/2016 +0 days 🔍
12/16/2016 +0 days 🔍
09/15/2024 +2830 days 🔍

Sourcesinfo

Vendor: joomla.org

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2016-9838 (🔍)
GCVE (CVE): GCVE-0-2016-9838
GCVE (VulDB): GCVE-100-94548
SecurityFocus: 94893

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/16/2016 15:38
Updated: 09/15/2024 20:49
Changes: 12/16/2016 15:38 (44), 04/21/2019 12:18 (18), 10/12/2022 08:08 (2), 10/12/2022 08:13 (11), 10/12/2022 08:16 (1), 09/15/2024 20:49 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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