CVE-2016-10089

Impact:
Low
Public Date:
2016-12-30
CWE:
CWE-59
Bugzilla:
1510927: CVE-2016-10089 nagios: Privilege escalation due to incomplete fix for CVE-2016-8641
A vulnerability was found in Nagios 4.2.4, and earlier, which allows local users to gain root privileges via a hard link attack on the Nagios init script file, related to CVE-2016-8641.

Find out more about CVE-2016-10089 from the MITRE CVE dictionary dictionary and NIST NVD.

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/.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 6.7
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Mobile Application Platform On-Premise 4 nagios Not affected
Red Hat Gluster Storage 3 nagios Will not fix
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 nagios Will not fix
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 nagios Will not fix

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

External References

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