Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2016-9565

Improper Access Control

Published: Dec 15, 2016 | Modified: Apr 12, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
6.8 IMPORTANT
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V3
8.1 IMPORTANT
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
root.io logo minimus.io logo echo.ai logo
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2016-9565
CWEhttps://cwe.mitre.org/data/definitions/284.html

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.

Weakness

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Software

NameVendorStart VersionEnd Version
NagiosNagios*4.2.1 (including)
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6RedHatnagios-0:3.5.1-9.el6*
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7RedHatnagios-0:3.5.1-9.el7*
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7RedHatnagios-0:3.5.1-9.el7*
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7RedHatnagios-0:3.5.1-9.el7*
Red Hat Gluster Storage 3.1 for RHEL 6RedHatnagios-0:3.5.1-9.el6*
Red Hat Gluster Storage 3.1 for RHEL 7RedHatnagios-0:3.5.1-9.el7*
Nagios3Ubuntuprecise*
Nagios3Ubuntuupstream*

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2026 Aqua Security Software Ltd.   Privacy Policy | Terms of Use