base/logging.c in Nagios Core before 4.2.4 allows local users with access to an account…
Priority MEDIUM 42CWE-264Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 8 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
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.
Why it matters now
EPSS 0.04885 92nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix Partial Red Hat: 6 advisoriesRed Hat: 8 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 6 advisories
- RHSA-2017:0258 Released 2017-02-07 · Red Hat rating Importantnagios security update
- Red Hat Gluster Storage Nagios 3.1 on RHEL-7 nagios-3.5.1-9.el7, nagios-common-3.5.1-9.el7
- Red Hat Gluster Storage Server 3.1 on RHEL-7 nagios-3.5.1-9.el7, nagios-common-3.5.1-9.el7
- RHSA-2017:0259 Released 2017-02-07 · Red Hat rating Importantnagios security update
- Red Hat Gluster Storage Nagios 3.1 on RHEL-6 nagios-3.5.1-9.el6, nagios-common-3.5.1-9.el6, nagios-devel-3.5.1-9.el6
- Red Hat Gluster Storage Server 3.1 on RHEL-6 nagios-3.5.1-9.el6, nagios-common-3.5.1-9.el6
- RHSA-2017:0211 Released 2017-01-31 · Red Hat rating Importantnagios security update
- Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 nagios-3.5.1-9.el7, nagios-common-3.5.1-9.el7, nagios-devel-3.5.1-9.el7
Show 3 more Red Hat advisories
- RHSA-2017:0212 Released 2017-01-31 · Red Hat rating Importantnagios security update
- Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 nagios-3.5.1-9.el6, nagios-common-3.5.1-9.el6, nagios-devel-3.5.1-9.el6
- RHSA-2017:0213 Released 2017-01-31 · Red Hat rating Importantnagios security update
- Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 nagios-3.5.1-9.el7, nagios-common-3.5.1-9.el7
- RHSA-2017:0214 Released 2017-01-31 · Red Hat rating Importantnagios security update
- Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 nagios-3.5.1-9.el7, nagios-common-3.5.1-9.el7
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Mobile Application Platform 4 | Affected | No fix yet |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 | Fixed | RHSA-2017:0212 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | Fixed | RHSA-2017:0211 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | Fixed | RHSA-2017:0213 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | Fixed | RHSA-2017:0214 |
| Red Hat Gluster Storage Nagios 3.1 on RHEL-6 | Fixed | RHSA-2017:0259 |
| Red Hat Gluster Storage Nagios 3.1 on RHEL-7 | Fixed | RHSA-2017:0258 |
| Red Hat Gluster Storage Server 3.1 on RHEL-6 | Fixed | RHSA-2017:0259 |
| Red Hat Gluster Storage Server 3.1 on RHEL-7 | Fixed | RHSA-2017:0258 |
Not affected: 3 products
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 8 (Liberty)
- Red Hat OpenStack Platform 9 (Mitaka)
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9566
- 2026-10-03 Alias added: GHSA-9332-j4wp-2xcq
References
Patch 1
Advisory 11
More Nagios vulnerabilities
- TI-2009-02180 statuswml.cgi in Nagios before 3.1.1 allows remote attackers to execute arbitrary… CVSS 2.0HIGH 7.5
- TI-2012-05060 Multiple stack-based buffer overflows in the get_history function in history.cgi in… CVSS 2.0HIGH 7.5
- TI-2016-07788 MagpieRSS, as used in the front-end component in Nagios Core before 4.2.2 might allow… CVSS 3.0CRITICAL 9.8
- TI-2013-05840 Multiple off-by-one errors in Nagios Core 3.5.1, 4.0.2, and earlier, and Icinga before… CVSS 2.0MEDIUM 5.5
- TI-2008-04579 The _httpsrequest function (Snoopy/Snoopy.class.php) in Snoopy 1.2.3 and earlier, as used… CVSS 2.0HIGH 10.0
- TI-2014-04112 Snoopy allows remote attackers to execute arbitrary commands. CVSS 3.0CRITICAL 9.8
Sources
- CVE-2016-9566 · CVE Program
- CVE-2016-9566 · NVD
- FIRST EPSS
- GHSA-9332-j4wp-2xcq · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9566 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences