CVE-2016-8870
HIGH severity · CVSS 8.1 · Improper input validation
8.1CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)82%
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf ↗
Additional information
- NVD record
- https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcfPatch
- https://developer.joomla.org/security-centre/659-20161001-core-account-creation.htmlAdvisory
- http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privescAdvisory
- http://www.securityfocus.com/bid/93876Advisory
- http://www.securitytracker.com/id/1037107
- http://www.securitytracker.com/id/1037108Advisory
- https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html
- https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r