CVE-2016-9565

Related Vulnerabilities: CVE-2016-9565  

It was found that an attacker who could control the content of an RSS feed could execute code remotely using the Nagios web interface. This flaw could be used to gain access to the remote system and in some scenarios control over the system.

It was found that an attacker who could control the content of an RSS feed could execute code remotely using the Nagios web interface. This flaw could be used to gain access to the remote system and in some scenarios control over the system.

Find out more about CVE-2016-9565 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 6.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

CVSS v3 metrics

CVSS3 Base Score 8.1
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 (nagios) RHSA-2017:0211 2017-01-31
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 (nagios) RHSA-2017:0213 2017-01-31
Red Hat Gluster Storage Server 3.1 on RHEL-7 (nagios) RHSA-2017:0258 2017-02-07
Red Hat Gluster Storage Nagios 3.1 on RHEL-6 (nagios) RHSA-2017:0259 2017-02-07
Red Hat Gluster Storage Server 3.1 on RHEL-6 (nagios) RHSA-2017:0259 2017-02-07
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 (nagios) RHSA-2017:0212 2017-01-31
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 (nagios) RHSA-2017:0214 2017-01-31
Red Hat Gluster Storage Nagios 3.1 on RHEL-7 (nagios) RHSA-2017:0258 2017-02-07

Affected Packages State

Platform Package State
Red Hat OpenStack Platform 9.0 nagios Not affected
Red Hat OpenStack Platform 8.0 (Liberty) nagios Not affected
Red Hat OpenStack Platform 10 nagios Not affected
Red Hat Mobile Application Platform On-Premise 4 nagios Will not fix

Mitigation

#!/bin/bash

mv /usr/share/nagios/html/includes/rss /usr/share/nagios/html/includes/rss.disarmed
mv /usr/share/nagios/html/rss-corefeed.php /usr/share/nagios/html/rss-corefeed.php.disarmed
mv /usr/share/nagios/html/rss-newsfeed.php /usr/share/nagios/html/rss-newsfeed.php.disarmed

This should disable rss from nagios installation and stop affected php code from being executed. Only downside to this would be news widget wont fetch any data from nagios.org rss feeds.

External References