TMA-TOMCAT-4.1

Restrict access to $CATALINA_HOME

中レベル 1自動tomcat

説明

$CATALINA_HOME is the environment variable which holds the path to the root Tomcat directory. It is important to protect access to this in order to protect the Tomcat binaries and libraries from unauthorized modification. It is recommended that the ownership of $CATALINA_HOME be tomcat_admin:tomcat. $CATALINA_HOME must not match -perm /o+rwx,g=w and must be owned by $TOMCAT_OWNER:$TOMCAT_GROUP; expects 0 findings. Reads $CATALINA_BASE (default /opt/tomcat) and $CATALINA_HOME (default: $CATALINA_BASE); set them for packaged installs (e.g. CATALINA_BASE=/var/lib/tomcat10, CATALINA_HOME=/usr/share/tomcat10). XML comments are ignored. The expected owner/group are tomcat_admin:tomcat as in the benchmark; override with TOMCAT_OWNER / TOMCAT_GROUP.

チェック方法

監査方法: シェルコマンド

shell

B=${CATALINA_BASE:-/opt/tomcat}; H=${CATALINA_HOME:-$B}; O=${TOMCAT_OWNER:-tomcat_admin}; G=${TOMCAT_GROUP:-tomcat}; x(){ [ -r "$1" ] || return 1; awk 'BEGIN{RS="<!--"} NR==1{print;next} {i=index($0,"-->"); if(i) print substr($0,i+3)}' "$1" | tr '\n\t\r' '   ' | tr '<' '\n'; }; p="$H"; [ -e "$p" ] || exit 1; find -L "$p" -maxdepth 0 \( -perm /o+rwx,g=w -o ! -user "$O" -o ! -group "$G" \) -print 2>/dev/null | wc -l

期待される出力: 0

修正方法

修正方法: ガイダンスまたは IaC パッチ

chown tomcat_admin:tomcat $CATALINA_HOME && chmod g-w,o-rwx $CATALINA_HOME. Restart Tomcat afterwards.

プロパティ

オペレーティングシステム: すべて
タグ: tomcatpermissions
参照: CIS Apache Tomcat 10.1 Benchmark v1.0.0 - 4.1 Restrict access to $CATALINA_HOME

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target tomcat