nagios: Privilege escalation due to incomplete fix for CVE-2016-8641
Published Feb 15, 2017
7.8
HIGHCVSS 3.0
EPSS 0.52%
Description
Nagios 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.
Affected products
No data.
No data.
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
nagios
Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
nagios
Will not fix
Red Hat Mobile Application Platform 4
nagios
Not affected
Red Hat Storage 3
nagios
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | nagios | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | nagios | Will not fix | n/a |
| Red Hat Mobile Application Platform 4 | nagios | Not affected | n/a |
| Red Hat Storage 3 | nagios | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Red Hat mitigation
This flaw, and others like it, are mitigated by enabling hardlink and symlink protections. These protections are enabled by default in Red Hat Enterprise Linux 7 and this vulnerability will only be exploitable if disabled. Ensure the following protections are enabled: sysctl -w fs.protected_hardlinks=1 sysctl -w fs.protected_symlinks=1
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.52% (0.00517) | 41.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.52% (0.00517) | 39.65th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00099) | 25.15th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00065) | 30.58th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.07% (0.00065) | 28.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00065) | 26.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (7)
- http://www.openwall.com/lists/oss-security/2016/12/30/5
- http://www.openwall.com/lists/oss-security/2016/12/30/6 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95171 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-10089 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1510927 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-10089
- https://www.cve.org/CVERecord?id=CVE-2016-10089
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/12/30/5 | ||
| http://www.openwall.com/lists/oss-security/2016/12/30/6 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/95171 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-10089 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1510927 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-10089 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-10089 |
Change history (0)
No recorded changes yet.