CVE-2016-1247

moderate-risk

Published 2016-11-29

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.

Do I need to act?

9.8% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

1 public exploit available

40768

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (4)

Fedora

Nginx

Fedora

Affected Vendors

Fedoraproject F5

References (30)

Exploit http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Priv...

Mailing List http://seclists.org/fulldisclosure/2016/Nov/78

Mailing List http://seclists.org/fulldisclosure/2017/Jan/33

Vendor Advisory http://www.debian.org/security/2016/dsa-3701

Third Party Advisory http://www.securityfocus.com/archive/1/539796/100/0/threaded

Third Party Advisory http://www.securityfocus.com/bid/93903

Third Party Advisory http://www.securitytracker.com/id/1037104

Vendor Advisory http://www.ubuntu.com/usn/USN-3114-1

Exploit https://legalhackers.com/advisories/Nginx-Exploit-Deb-Root-PrivEsc-CVE-2016-1247...

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.gentoo.org/glsa/201701-22

Exploit https://www.exploit-db.com/exploits/40768/

Exploit https://www.youtube.com/watch?v=aTswN1k1fQs

Exploit http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Priv...

Mailing List http://seclists.org/fulldisclosure/2016/Nov/78

Mailing List http://seclists.org/fulldisclosure/2017/Jan/33

Vendor Advisory http://www.debian.org/security/2016/dsa-3701

Third Party Advisory http://www.securityfocus.com/archive/1/539796/100/0/threaded

and 10 more references

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 11/34 · Low

Exposure 10/34 · Low