Exploits Discovered - Published CVE-2017-16834

Security News - Nov 15, 2017

Title: pnp4nagios root privilege escalation via insecure permissions
Author: Michael Orlitzky
Fixedin: Commit 23c123f

Summary

The pnp4nagios build system installs two sets of files with insecure permissions. After installation, the executables and the configuration files are all owned by the same unprivileged user and group (typically, nagios) that the npcd daemon runs as. In one attack, the unprivileged user simply replaces the npcd executable with one that does his bidding. A slightly more complicated attack can be mounted by the unprivileged user by configuring a malicious action and then altering npcd.cfg to execute that action as root.

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Complete details here: http://michael.orlitzky.com/cves/cve-2017-16834.xhtml

What is CVE?

Common Vulnerabilities and Exposures (CVE®) is a list of common identifiers for publicly known cybersecurity vulnerabilities, and is the industry standard for vulnerability and exposure identifiers.

The process of creating a CVE Entry begins with the discovery of a potential security vulnerability.  The MITRE Corporation currently maintains CVE and this public website, oversees the CNAs and CVE Board, and provides impartial technical guidance throughout the process to ensure CVE serves the public interest.

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About the CVE Author, Michael J. Orlitzky

Mike has been with Metro Data, Inc. for over 20 years.  He holds a PhD in Mathematics.  He has been globally recognized for his work in discovering (and fixing) vulnerabilities in operating systems and application software.  His research has been published in professional journals and he's been acknowledged by industry and academic peers for his work.

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