The core BIND 9.x server files must be owned by the root or BIND 9.x process account.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-72477	BIND-9X-001320	SV-87101r2_rule		Medium

Description
Discretionary Access Control (DAC) is based on the premise that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. In a DNS implementation, DAC should be granted to a minimal number of individuals and objects because DNS does not interact directly with users and users do not store and share data with the DNS application directly.

Description

Discretionary Access Control (DAC) is based on the premise that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. In a DNS implementation, DAC should be granted to a minimal number of individuals and objects because DNS does not interact directly with users and users do not store and share data with the DNS application directly.

STIG	Date
BIND 9.x Security Technical Implementation Guide	2018-01-02

Details

Check Text ( C-72679r3_chk )
Verify that the core BIND 9.x server files are owned by the root or BIND 9.x process account. With the assistance of the DNS administrator, identify the following files: named.conf root hints master zone file(s) slave zone files(s) Note: The name of the root hints file is defined in named.conf. Common names for the file are root.hints, named.cache, or db.cache. If the identified files are not owned by the root or BIND 9.x process account, this is a finding.

Check Text ( C-72679r3_chk )

Verify that the core BIND 9.x server files are owned by the root or BIND 9.x process account.

With the assistance of the DNS administrator, identify the following files:

named.conf
root hints
master zone file(s)
slave zone files(s)

Note: The name of the root hints file is defined in named.conf. Common names for the file are root.hints, named.cache, or db.cache.

If the identified files are not owned by the root or BIND 9.x process account, this is a finding.

Fix Text (F-78833r2_fix)
Change the ownership of the files to the root or BIND 9.x process account. # chown