Rapid7 Vulnerability & Exploit Database

Nginx: Insufficient limits of CNAME resolution in resolver (CVE-2016-0747)

Back to Search

Nginx: Insufficient limits of CNAME resolution in resolver (CVE-2016-0747)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
01/29/2016
Created
07/25/2018
Added
01/29/2016
Modified
01/08/2018

Description

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.

Solution(s)

  • nginx-nginx-upgrade-1_8_1
  • nginx-nginx-upgrade-1_9_10

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;