Ensure TMOUT is configured

보통레벨 2자동aix

설명

TMOUT and TIMEOUT are environmental setting that activate the timeout of a shell. The value is in seconds. TMOUT=n - Sets the shell timeout to n seconds. A setting of TMOUT=0, or unset TMOUT disables the automatic session timeout. readonly TMOUT- Both export and lock TMOUT environmental variable to it's present value, preventing unwanted modification during run-time. Audit: /etc/profile must set TMOUT and TIMEOUT to 1-900 seconds and export them (the CIS `readonly` check needs a login shell).

점검 방법

감사 방식: 셸 명령

shell

[ -r /etc/profile ] || exit 1; t=$(sed -n "s/^[[:blank:]]*TMOUT=\([0-9][0-9]*\).*/\1/p" /etc/profile | tail -n 1); u=$(sed -n "s/^[[:blank:]]*TIMEOUT=\([0-9][0-9]*\).*/\1/p" /etc/profile | tail -n 1); if [ -n "$t" ] && [ "$t" -ge 1 ] && [ "$t" -le 900 ] && [ -n "$u" ] && [ "$u" -ge 1 ] && [ "$u" -le 900 ] && grep -Eq "^[[:blank:]]*(export|readonly)[[:blank:]].*TMOUT" /etc/profile; then echo compliant; else echo "TMOUT=$t TIMEOUT=$u"; fi

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

Review /etc/profile to verify that TMOUT and TIMEOUT are configured to: include a timeout of no more than 900 seconds to be readonly verify readonly statement is the last statement /usr/bin/egrep -e "TMOUT|TIMEOUT" /etc/profile This should return something similar to: # TMOUT=120 TMOUT=900 TIMEOUT=900 readonly TMOUT TIMEOUT If either setting is missing, and/or the readonly statement, add these to /etc/profile.

속성

운영 체제: 모두
태그: aixhardening
참고 자료: CIS IBM AIX 7 Benchmark v1.2.0 - 4.7.5 Ensure TMOUT is configured

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감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target aix --level 2