CVE-2016-1247

HIGH severity · CVSS 7.8 · CWE-59

7.8CVSS HIGH

Summary

The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04 LTS, before 1.10.0-0ubuntu0.16.04.3 on Ubuntu 16.04 LTS, and before 1.10.1-0ubuntu1.1 on Ubuntu 16.10, and the nginx ebuild before 1.10.2-r3 on Gentoo allow local users with access to the web server user account to gain root privileges via a symlink attack on the error log.

Impact & exploitability

Attack vectorLocal

Attack complexityLow

Privileges requiredLow

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)10%

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products we track (3)

Nginx Ubuntu Debian

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

NVD record
http://www.debian.org/security/2016/dsa-3701Advisory
http://www.ubuntu.com/usn/USN-3114-1Advisory
http://seclists.org/fulldisclosure/2016/Nov/78Advisory
http://seclists.org/fulldisclosure/2017/Jan/33Advisory
http://www.securityfocus.com/archive/1/539796/100/0/threadedAdvisory
http://www.securityfocus.com/bid/93903Advisory
http://www.securitytracker.com/id/1037104Advisory
http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.htmlAdvisory