CVE-2016-9566 EXPLOIT
7.8
HIGH · CVSS 3.0 · EPSS 4.9% (pctl 92)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.8 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.89% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-59 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2016-12-15 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| nagios | nagios |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Nagios < 4.2.4 - Local Privilege Escalation | 2016-12-15 |
References
- http://rhn.redhat.com/errata/RHSA-2017-0211.html
- http://rhn.redhat.com/errata/RHSA-2017-0212.html
- http://rhn.redhat.com/errata/RHSA-2017-0213.html
- http://rhn.redhat.com/errata/RHSA-2017-0214.html
- http://rhn.redhat.com/errata/RHSA-2017-0258.html
- http://rhn.redhat.com/errata/RHSA-2017-0259.html
- http://seclists.org/fulldisclosure/2016/Dec/58
- http://www.securityfocus.com/bid/94919
- http://www.securitytracker.com/id/1037487
- https://bugzilla.redhat.com/show_bug.cgi?id=1402869
- https://github.com/NagiosEnterprises/nagioscore/commit/c29557dec91eba2306f5fb11b8da4474ba63f8c4
- https://legalhackers.com/advisories/Nagios-Exploit-Root-PrivEsc-CVE-2016-9566.html
- https://lists.debian.org/debian-lts-announce/2018/12/msg00014.html
- https://security.gentoo.org/glsa/201612-51
- https://security.gentoo.org/glsa/201702-26
- https://security.gentoo.org/glsa/201710-20
- https://www.exploit-db.com/exploits/40921/
- https://www.nagios.org/projects/nagios-core/history/4x/
- http://rhn.redhat.com/errata/RHSA-2017-0211.html
- http://rhn.redhat.com/errata/RHSA-2017-0212.html
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