CVE-2016-9566

HIGH

Nagios < 4.2.3 - Symlink Following

Title source: rule

Description

base/logging.c in Nagios Core before 4.2.4 allows local users with access to an account in the nagios group to gain root privileges via a symlink attack on the log file. NOTE: this can be leveraged by remote attackers using CVE-2016-9565.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Dawid Golunski · bashlocallinux

https://www.exploit-db.com/exploits/40921

View Code ZIP pw:eip

References (18)

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2017-0211.html

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2017-0212.html

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2017-0213.html

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2017-0214.html

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2017-0258.html

[Vendor Advisory] http://rhn.redhat.com/errata/RHSA-2017-0259.html

[Mailing List, Third Party Advisory] http://seclists.org/fulldisclosure/2016/Dec/58

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/94919

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1037487

[Issue Tracking] https://bugzilla.redhat.com/show_bug.cgi?id=1402869

[Issue Tracking, Patch] https://github.com/NagiosEnterprises/nagioscore/commit/c29557dec91eba2306f5fb11b8da4474ba63f8c4

[Exploit, Third Party Advisory] https://legalhackers.com/advisories/Nagios-Exploit-Root-PrivEsc-CVE-2016-9566.html

[Mailing List] https://lists.debian.org/debian-lts-announce/2018/12/msg00014.html

[Vendor Advisory] https://www.nagios.org/projects/nagios-core/history/4x/

[Exploit, Third Party Advisory] https://www.exploit-db.com/exploits/40921/

[Third Party Advisory] https://security.gentoo.org/glsa/201612-51

[Third Party Advisory] https://security.gentoo.org/glsa/201702-26

[Third Party Advisory] https://security.gentoo.org/glsa/201710-20

Scores

CVSS v3 7.8

EPSS 0.0860

EPSS Percentile 92.4%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-264 CWE-59

Status published

Products (1)

nagios/nagios < 4.2.3

Published Dec 15, 2016

Tracked Since Feb 18, 2026