What’s Vulnerable › Vulnerabilities

CVE-2017-12847

• Severity: medium (CVSS 6.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-08-23 · updated 2026-06-17
• Weakness: CWE-665

Description

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.

Affected products

• Nagios Enterprises nagios: through 4.3.2

References

• http://www.securityfocus.com/bid/100403
• https://github.com/NagiosEnterprises/nagioscore/blob/master/Changelog
• https://github.com/NagiosEnterprises/nagioscore/commit/1b197346d490df2e2d3b1dcce5ac6134ad0c8752
• https://github.com/NagiosEnterprises/nagioscore/commit/3baffa78bafebbbdf9f448890ba5a952ea2d73cb
• https://github.com/NagiosEnterprises/nagioscore/issues/404
• https://security.gentoo.org/glsa/201710-20
• http://www.securityfocus.com/bid/100403
• https://github.com/NagiosEnterprises/nagioscore/blob/master/Changelog
• https://github.com/NagiosEnterprises/nagioscore/commit/1b197346d490df2e2d3b1dcce5ac6134ad0c8752
• https://github.com/NagiosEnterprises/nagioscore/commit/3baffa78bafebbbdf9f448890ba5a952ea2d73cb
• https://github.com/NagiosEnterprises/nagioscore/issues/404
• https://security.gentoo.org/glsa/201710-20

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