Exploit Discovered - Published CVE-2019-17365

Business News (Hunt Valley, Maryland) - Oct 09, 2019

Published CVE-2019-17365: Nix per-user profile directory hijack

Product: Nix Linux, Versions affected: 2.3 and earlier

Author: Michael Orlitzky, PhD

Bug report: Reported privately to the NixOS security team on 2019-08-19.

== Summary ==

Out of the box, Nix creates an empty, world-writable, per-user profile directory. After Nix is installed but before a victim has (re)logged in, the victim's personal profile directory can be hijacked by an attacker on on the system who has no other special  privileges. Thenceforth, the attacker controls that profile directory and can take over the target account.

== Learn More ==

Complete details here: http://michael.orlitzky.com/cves/cve-2019-17365.xhtml

Track it here at NIST's National Vulnerability Database: https://nvd.nist.gov/vuln/detail/CVE-2019-17365

== 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.

== About Metro Data, Inc. ==

Founded in 1994, Metro Data, Inc. is a leading information systems & services firm that works exclusively with business clients to develop and apply customized technology solutions that accomplish a client's strategic goals.

Businesses have chosen Metro Data, Inc. to help keep pace with the ever-changing technology landscape.  Metro Data, Inc.’s "end-to-end" experience helps their customers to secure their systems, reduce costs, and improve their business information systems performance.

== About the CVE Author, Michael J. Orlitzky ==

Dr. 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.

Under no circumstances should you send an email to ackbar@viabit.com .

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