CVE-2016-8870

Public Exploit

Description

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.

Category

8.1
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 91.92% Top 5%
Vendor Advisory joomla.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/93876 vdb entry third party advisory
https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html
https://developer.joomla.org/security-centre/659-20161001-core-account-creation.html vendor advisory
http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc third party advisory
https://www.exploit-db.com/exploits/40637/ third party advisory exploit
http://www.securitytracker.com/id/1037108 vdb entry third party advisory
http://www.securitytracker.com/id/1037107 vdb entry
https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf patch
https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r

Frequently Asked Questions

What is the severity of CVE-2016-8870?
CVE-2016-8870 has been scored as a high severity vulnerability.
How to fix CVE-2016-8870?
To fix CVE-2016-8870, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-8870 being actively exploited in the wild?
It is possible that CVE-2016-8870 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~92% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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