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Vulnerability Details : CVE-2016-8870

The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.
Publish Date : 2016-11-04 Last Update Date : 2017-07-28
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 20

- Products Affected By CVE-2016-8870

# Product Type Vendor Product Version Update Edition Language
1 Application Joomla Joomla! 3.6.3 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Joomla Joomla! 1

- References For CVE-2016-8870

http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc
https://www.exploit-db.com/exploits/40637/
EXPLOIT-DB 40637
https://medium.com/@showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r
https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf CONFIRM
http://www.securitytracker.com/id/1037107
SECTRACK 1037107
http://www.securitytracker.com/id/1037108
SECTRACK 1037108
https://developer.joomla.org/security-centre/659-20161001-core-account-creation.html CONFIRM
http://www.securityfocus.com/bid/93876
BID 93876 Joomla! Core CVE-2016-8870 Security Bypass Vulnerability Release Date:2016-10-26
https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html

- Metasploit Modules Related To CVE-2016-8870

Joomla Account Creation and Privilege Escalation
This module creates an arbitrary account with administrative privileges in Joomla versions 3.4.4 through 3.6.3. If an email server is configured in Joomla, an email will be sent to activate the account (the account is disabled by default).
Module type : auxiliary Rank : normal


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