TMA-ORACLE-DB-2.2.5

Ensure 'SQLNET.ALLOWED_LOGON_VERSION_SERVER' Is Set To 12a

HighLevel 1Automatedoracle-db

Description

This setting SQLNET.ALLOWED_LOGON_VERSION_SERVER configures the minimum authentication protocols clients can use to connect to database instances. Please note that the term VERSION in the parameter name refers to the version of the authentication protocol, not the version of the Oracle Database release. The last uncommented setting in sqlnet.ora must equal 12A (case-insensitive, spaces ignored). Default: 12 Reads the file from $TNS_ADMIN, or $ORACLE_HOME/network/admin when TNS_ADMIN is unset (Linux/UNIX hosts); fails when neither directory exists.

How it is checked

Audit method: Shell command

shell

d="${TNS_ADMIN:-${ORACLE_HOME:?ORACLE_HOME not set}/network/admin}"; [ -d "$d" ] || { echo "missing $d"; exit 1; }; f="$d/sqlnet.ora"; [ -f "$f" ] || { echo "noncompliant: $f not found"; exit 0; }; v=$(grep -Ei '^[[:space:]]*SQLNET\.ALLOWED_LOGON_VERSION_SERVER[[:space:]]*=' "$f" | tail -n 1 | sed 's/^[^=]*=//' | tr -d ' \t\r' | tr '[:lower:]' '[:upper:]'); [ "$v" = "12A" ] && echo compliant || echo "noncompliant: ${v:-not set}"

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

To remediate this recommendation, set SQLNET.ALLOWED_LOGON_VERSION_SERVER to 12a.

Properties

Operating systems: Any
Tags: oracle-dbdatabaseoraclenetworkencryption
Reference: CIS Oracle Database 23ai Benchmark v1.1.0 - 2.2.5 Ensure 'SQLNET.ALLOWED_LOGON_VERSION_SERVER' Is Set To 12a

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target oracle-db