Ensure snmp services are not in use

MédiaNível 1Automatizadalinux

Descrição

Simple Network Management Protocol (SNMP) is a widely used protocol for monitoring the health and welfare of network equipment, computer equipment and devices like UPSs. Net-SNMP is a suite of applications used to implement SNMPv1 (RFC 1157), SNMPv2 (RFCs 1901-1908), and SNMPv3 (RFCs 3411-3418) using both IPv4 and IPv6. Support for SNMPv2 classic (a.k.a. "SNMPv2 historic" - RFCs 1441-1452) was dropped with the 4.0 release of the UCD-snmp package. The Simple Network Management Protocol (SNMP) server is used to listen for SNMP commands from an SNMP management system, execute the commands or coll

Como é verificado

Método de auditoria: Comando shell

shell

alt0() { command -v rpm >/dev/null 2>&1 || { echo "step1: rpm not installed"; return 1; }; o=$(bash -c 'rpm -q net-snmp' 2>&1); printf '%s\n' "$o" | tr -s ' \t' '  ' | sed 's/^ //;s/ $//' | grep -Fxq -- 'package net-snmp is not installed' || { echo step1: missing 'package net-snmp is not installed'; return 1; }; command -v grep >/dev/null 2>&1 || { echo "step2: grep not installed"; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step2: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-enabled snmpd.service 2>/dev/null | grep '"'"'enabled'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step2: $o" | head -c 300; return 1; }; command -v grep >/dev/null 2>&1 || { echo "step3: grep not installed"; return 1; }; command -v systemctl >/dev/null 2>&1 || { echo "step3: systemctl not installed"; return 1; }; o=$(bash -c 'systemctl is-active snmpd.service 2>/dev/null | grep '"'"'^active'"'"'' 2>/dev/null); [ -z "$o" ] || { echo "step3: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi

Saída esperada: compliant

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

Run the following commands to stop snmpd.service and remove net-snmp package: # systemctl stop snmpd.service # dnf remove net-snmp - OR - If the package is required for dependencies: Run the following commands to stop and mask the snmpd.service: # systemctl stop snmpd.service # systemctl mask snmpd.service

Propriedades

Sistemas operacionais: almalinux-8
Tags: cis-convertedlinux
Referência: CIS AlmaLinux OS 8 Benchmark v4.0.0 - 2.1.15

Verificar este host

Execute isto em uma máquina que você tenha permissão para auditar. A varredura é somente leitura.

shell

tmaegis scan --target linux