STIGQter: STIG Summary: EDB Postgres Advanced Server v11 on Windows Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 23 Oct 2020:

If passwords are used for authentication, the EDB Postgres Advanced Server must transmit only encrypted representations of passwords.

DISA Rule

SV-224168r508023_rule

Vulnerability Number

V-224168

Group Title

SRG-APP-000172-DB-000075

Rule Version

EP11-00-004400

Severity

CAT II

CCI(s)

• CCI-000197 - The information system, for password-based authentication, transmits only cryptographically-protected passwords.

Weight

10

Fix Recommendation

Open "<postgresql data directory>\pg_hba.conf" in an editor.

Note that the default location for the pg_hba.conf file is in the postgresql data directory. The location of the pg_hba.conf file for a running postgres instance can be found using the following command run from a Windows command prompt:

psql -d <database name> -U <database superuser name> -c "SHOW hba_file"

where, <database name> is any database in the EDB postgres instance and <database superuser name> is a database superuser. By default, a database named "edb" and a superuser named "enterprisedb" are installed with EDB Postgres Advanced Server (EPAS).

For any rows that have "password" specified for the "METHOD" column, change the value to "sha-256-scram" or "md5".

Check Contents

Verify that the pg_hba.conf is not using the "password" authentication method.

Note that the default location for the pg_hba.conf file is in the postgresql data directory. The location of the pg_hba.conf file for a running postgres instance can be found using the following command run from a Windows command prompt:

psql -d <database name> -U <database superuser name> -c "SHOW hba_file"

where, <database name> is any database in the EDB postgres instance and <database superuser name> is a database superuser. By default, a database named "edb" and a superuser named "enterprisedb" are installed with EDB Postgres Advanced Server (EPAS).

To verify that the pg_hba.conf file is not using the methods listed above, open the pg_hba.conf file in a text editor and inspect the contents of the file. If any uncommented lines have "password" specified for the "METHOD" column, this is a finding.

Optionally, the following command can be run from a Windows command prompt to identify any uncommented lines in the pg_hba.conf file that may be using these methods:

type <postgresql data directory>\pg_hba.conf | findstr /N "password" | find /V /N "#"

Note: For the command above, if the path to the pg_hba.conf file contains spaces in it, the path to the file (including the file name) should be placed in double quotes.

If any uncommented lines showing that the "password" authentication method has been specified are reported via the above command, this is a finding.

Vulnerability Number

V-224168

Documentable

False

Rule Version

EP11-00-004400

Severity Override Guidance

Verify that the pg_hba.conf is not using the "password" authentication method.

Note that the default location for the pg_hba.conf file is in the postgresql data directory. The location of the pg_hba.conf file for a running postgres instance can be found using the following command run from a Windows command prompt:

psql -d <database name> -U <database superuser name> -c "SHOW hba_file"

where, <database name> is any database in the EDB postgres instance and <database superuser name> is a database superuser. By default, a database named "edb" and a superuser named "enterprisedb" are installed with EDB Postgres Advanced Server (EPAS).

To verify that the pg_hba.conf file is not using the methods listed above, open the pg_hba.conf file in a text editor and inspect the contents of the file. If any uncommented lines have "password" specified for the "METHOD" column, this is a finding.

Optionally, the following command can be run from a Windows command prompt to identify any uncommented lines in the pg_hba.conf file that may be using these methods:

type <postgresql data directory>\pg_hba.conf | findstr /N "password" | find /V /N "#"

Note: For the command above, if the path to the pg_hba.conf file contains spaces in it, the path to the file (including the file name) should be placed in double quotes.

If any uncommented lines showing that the "password" authentication method has been specified are reported via the above command, this is a finding.

Check Content Reference

M

Target Key

4107

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