CVE-2017-12847
MEDIUM severity · CVSS 6.3 · CWE-665
6.3CVSS MEDIUM
Summary
Nagios Core before 4.3.3 creates a nagios.lock PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for nagios.lock modification before a root script executes a "kill `cat /pathname/nagios.lock`" command.
Impact & exploitability
Attack vectorLocal
Attack complexityHigh
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/NagiosEnterprises/nagioscore/commit/1b197346d490df2e2d3b1dcce5ac6134ad0c8752 ↗
Additional information
- NVD record
- https://github.com/NagiosEnterprises/nagioscore/commit/1b197346d490df2e2d3b1dcce5ac6134ad0c8752Patch
- https://github.com/NagiosEnterprises/nagioscore/commit/3baffa78bafebbbdf9f448890ba5a952ea2d73cbPatch
- https://github.com/NagiosEnterprises/nagioscore/blob/master/ChangelogAdvisory
- https://github.com/NagiosEnterprises/nagioscore/issues/404Advisory
- http://www.securityfocus.com/bid/100403Advisory
- https://security.gentoo.org/glsa/201710-20Advisory