CVE-2016-8869
CRITICAL severity · CVSS 9.8 · Improper input validation
9.8CVSS CRITICAL
Summary
The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4 allows remote attackers to gain privileges by leveraging incorrect use of unfiltered data when registering on a site.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)97%
CVSS:3.0/AV:N/AC:L/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/660-20161002-core-elevated-privileges.htmlAdvisory
- http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privescAdvisory
- http://www.securityfocus.com/bid/93883Advisory
- http://www.securitytracker.com/id/1037108Advisory
- https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r
- https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.htmlAdvisory
- https://www.exploit-db.com/exploits/40637/Advisory