Disable the Shutdown port

中级别 2自动化tomcat

说明

Tomcat listens on TCP port 8005 to accept shutdown requests. By connecting to this port and sending the SHUTDOWN command, all applications within Tomcat are halted. The shutdown port is not exposed to the network as it is bound to the loopback interface. If this functionality is not used, it is recommended that the shutdown port be disabled. The Server element in server.xml must have port="-1". 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.

检查方式

审计方法: Shell 命令

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)}' "$1" | tr '\n\t\r' '   ' | tr '<' '\n'; }; s=$(x "$B/conf/server.xml") || exit 1; printf '%s\n' "$s" | grep -E '^Server[[:space:]]' | grep -Ec 'port[[:space:]]*=[[:space:]]*.-1.' || true

预期输出: 1

修复方式

修复方法: 操作指南或基础设施补丁

Set <Server port="-1" ...> in server.xml. Restart Tomcat afterwards.

属性

操作系统: 任意
标签: tomcatnetwork
参考: CIS Apache Tomcat 10.1 Benchmark v1.0.0 - 3.2 Disable the Shutdown port

检查本机

请在您有权审计的机器上运行此命令。扫描为只读操作。

shell

tmaegis scan --target tomcat --level 2