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Vulnerability record · CVE-2016-9565 · published 15 December 2016

CVE-2016-9565: Nagios improper access control vulnerability

Nagios · Nagios

MagpieRSS, as used in the front-end component in Nagios Core before 4.2.2 might allow remote attackers to read or write to arbitrary files by spoofing a crafted response from the Nagios RSS feed server. NOTE: this vulnerability exists because of an incomplete fix for CVE-2008-4796.

9.8 CVSS 3.0 Critical EPSS 23% · top 2.3% CWE-284 · Improper access control
9.8CVSS 3.0 base score, v2 7.5
23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
32References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

MagpieRSS, as used in the front-end component in Nagios Core before 4.2.2 might allow remote attackers to read or write to arbitrary files by spoofing a crafted response from the Nagios RSS feed server. NOTE: this vulnerability exists because of an incomplete fix for CVE-2008-4796.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/140169/Nagios-Core-Curl-Command-Injection-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
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/57 Mailing ListThird Party Advisory
http://www.securityfocus.com/archive/1/539925/100/0/threaded
http://www.securityfocus.com/bid/94922 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037488
https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.html ExploitThird Party Advisory
https://security.gentoo.org/glsa/201702-26
https://security.gentoo.org/glsa/201710-20
https://www.exploit-db.com/exploits/40920/
https://www.nagios.org/projects/nagios-core/history/4x/ Vendor Advisory
http://packetstormsecurity.com/files/140169/Nagios-Core-Curl-Command-Injection-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
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/57 Mailing ListThird Party Advisory
http://www.securityfocus.com/archive/1/539925/100/0/threaded
http://www.securityfocus.com/bid/94922 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037488
https://legalhackers.com/advisories/Nagios-Exploit-Command-Injection-CVE-2016-9565-2008-4796.html ExploitThird Party Advisory
https://security.gentoo.org/glsa/201702-26
https://security.gentoo.org/glsa/201710-20
https://www.exploit-db.com/exploits/40920/
https://www.nagios.org/projects/nagios-core/history/4x/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-4796Snoopy project snoopy os command injection vulnerabilityThe _httpsrequest function (Snoopy/Snoopy.class.php) in Snoopy 1.2.3 and earlier, as used in (1) ampache, (2) libphp-snoopy, (3) mahara, (4) mediamat…EPSS 9.0%10.0CVE-2002-1959Nagios vulnerabilityNagios 1.0b1 through 1.0b3 allows remote attackers to execute arbitrary commands via shell metacharacters in plugin output.EPSS 3.9%9.8CVE-2016-0726Nagios hard-coded credentials vulnerabilityThe Fedora Nagios package uses "nagiosadmin" as the default password for the "nagiosadmin" administrator account, which makes it easier for remote at…EPSS 2.3%9.8CVE-2008-7313Snoopy command injection vulnerabilityThe _httpsrequest function in Snoopy allows remote attackers to execute arbitrary commands. NOTE: this issue exists dues to an incomplete fix for CVE…EPSS 4.5%9.8CVE-2014-5009Snoopy command injection vulnerabilitySnoopy allows remote attackers to execute arbitrary commands. NOTE: this vulnerability exists due to an incomplete fix for CVE-2014-5008.EPSS 4.7%8.8CVE-2020-6585Nagios cross-site request forgery vulnerabilityNagios Log Server 2.1.3 has CSRF.EPSS 1.2%7.8CVE-2016-8641Nagios link following vulnerabilityA privilege escalation vulnerability was found in nagios 4.2.x that occurs in daemon-init.in when creating necessary files and insecurely changing th…EPSS 1.1%7.8CVE-2016-10089Nagios permissions and access controls vulnerabilityNagios 4.3.2 and earlier allows local users to gain root privileges via a hard link attack on the Nagios init script file, related to CVE-2016-8641.EPSS 0.52%

Source: NIST National Vulnerability Database (record CVE-2016-9565), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.