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The DBMS must use multifactor authentication for network access to non-privileged accounts.


Overview

Finding ID Version Rule ID IA Controls Severity
V-61705 O121-C2-013000 SV-76195r1_rule Medium
Description
Multifactor authentication is defined as using two or more factors to achieve authentication. Factors include: (i) Something a user knows (e.g., password/PIN); (ii) Something a user has (e.g., cryptographic identification device, token); or (iii) Something a user is (e.g., biometric). A non-privileged account is defined as an information system account with authorizations of a regular or non-privileged user. Network access is defined as access to an information system by a user (or a process acting on behalf of a user) communicating through a network (e.g., local area network, wide area network, Internet). The lack of multifactor authentication makes it much easier for an attacker to gain unauthorized access to a system. Transport Layer Security (TLS) is the successor protocol to Secure Sockets Layer (SSL). Although the Oracle configuration parameters have names including 'SSL', such as SSL_VERSION and SSL_CIPHER_SUITES, they refer to TLS.
STIG Date
Oracle Database 12c Security Technical Implementation Guide 2016-06-24

Details

Check Text ( C-62583r1_chk )
Review DBMS settings, OS settings, and/or enterprise-level authentication/access mechanism settings to determine whether users logging on to non-privileged accounts via a network are required to use multifactor authentication.

If users logging on to non-privileged accounts via a network are not required to use multifactor authentication, this is a finding.

Use authentication to prove the identities of users who are attempting to log on to the database. Authenticating user identity is imperative in distributed environments, without which there can be little confidence in network security. Passwords are the most common means of authentication. Oracle Database enables strong authentication with Oracle authentication adapters that support various third-party authentication services, including TLS with digital certificates.

If the $ORACLE_HOME/network/admin/sqlnet.ora contains entries similar to the following, TLS is enabled.

SQLNET.AUTHENTICATION_SERVICES= (BEQ, TCPS)
SSL_VERSION = 1.2 or 1.1
SSL_CLIENT_AUTHENTICATION = TRUE
WALLET_LOCATION =
(SOURCE =
(METHOD = FILE)
(METHOD_DATA =
(DIRECTORY = /u01/app/oracle/product/12.1.0/dbhome_1/owm/wallets)
)
)

SSL_CIPHER_SUITES= (SSL_RSA_WITH_AES_256_CBC_SHA384)
ADR_BASE = /u01/app/oracle

Note: "SSL_VERSION = 1.2 or 1.1" is the actual value, not a suggestion to use one or the other.
Fix Text (F-67621r1_fix)
Configure DBMS, OS and/or enterprise-level authentication/access mechanism to require multifactor authentication for network users logging on to non-privileged accounts.

If appropriate, enable support for Transport Layer Security (TLS) protocols and multifactor authentication through the use of Smart Cards (CAC/PIV).