CVE-2016-1247 EXPLOIT
7.8
HIGH · CVSS 3.1 · EPSS 4.9% (pctl 92)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.86% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-59 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2016-11-29 |
| Last modified | 2026-06-17 |
Affected (4)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| f5 | nginx |
| fedoraproject | fedora |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Nginx (Debian Based Distros + Gentoo) - 'logrotate' Local Privilege Escalation | 2016-11-16 |
References
- http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.html
- http://seclists.org/fulldisclosure/2016/Nov/78
- http://seclists.org/fulldisclosure/2017/Jan/33
- http://www.debian.org/security/2016/dsa-3701
- http://www.securityfocus.com/archive/1/539796/100/0/threaded
- http://www.securityfocus.com/bid/93903
- http://www.securitytracker.com/id/1037104
- http://www.ubuntu.com/usn/USN-3114-1
- https://legalhackers.com/advisories/Nginx-Exploit-Deb-Root-PrivEsc-CVE-2016-1247.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBIZEKHBOCKO7FUMCO4X53ENMWU5OYFX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ESTIADC7BDB6VTH4JAP6C6OCW2CQ4NHP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3WOO7E5R2HT5XVOIOFPEFALILVOWZUF/
- https://security.gentoo.org/glsa/201701-22
- https://www.exploit-db.com/exploits/40768/
- https://www.youtube.com/watch?v=aTswN1k1fQs
- http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.html
- http://seclists.org/fulldisclosure/2016/Nov/78
- http://seclists.org/fulldisclosure/2017/Jan/33
- http://www.debian.org/security/2016/dsa-3701
- http://www.securityfocus.com/archive/1/539796/100/0/threaded
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