CVE-2016-9566

moderate-risk

Published 2016-12-15

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.

Do I need to act?

8.6% 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

40921

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (1)

Nagios

Affected Vendors

Nagios

References (36)

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

Mailing List http://seclists.org/fulldisclosure/2016/Dec/58

Third Party Advisory http://www.securityfocus.com/bid/94919

http://www.securitytracker.com/id/1037487

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

Issue Tracking https://github.com/NagiosEnterprises/nagioscore/commit/c29557dec91eba2306f5fb11b...

Exploit https://legalhackers.com/advisories/Nagios-Exploit-Root-PrivEsc-CVE-2016-9566.ht...

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/

Vendor Advisory 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

and 16 more references

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moderate-risk

Severity 24/34 · High

Exploitability 17/34 · Moderate

Exposure 5/34 · Minimal