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如何使用我的 sudo 权限确认其他用户的 sudo 权限？

tag-icon • tag-icon sudo sssd freeipa
如何使用我的 sudo 权限确认其他用户的 sudo 权限？

我目前管理一个 IDM (自由IPA) 集群并拥有完整的 sudo 权限，即我可以通过sudo -Es.我想验证已添加到特定服务器上的 FreeIPA 的 sudo 规则，以确认主机通过 SSSD 正确选择了该规则。

我怎样才能做到这一点？

笔记：sudo 规则如下：

$ ipa sudorule-show prod-abc-dashboard-dba
  Rule name: prod-abc-dashboard-dba
  Enabled: TRUE
  Command category: all
  User Groups: eng-data-svc

答案1

我发现实现此目的的最简单方法是通过 SSH 连接到服务器，该服务器将获取 sudo 规则并检查组中被授予此类访问权限的用户。您可以使用sudo命令-l和 -U开关：

$ 人须藤

-l, --list  If no command is specified, list the allowed (and 
            forbidden) commands for the invoking user (or the user 
            specified by the -U option) on the current host.  A 
            longer list format is used if this option is specified 
            multiple times and the security policy supports a ver‐
            bose output format.

-U user, --other-user=user 
              Used in conjunction with the -l option to list the 
            privileges for user instead of for the invoking user.  
            The security policy may restrict listing other users' 
            privileges.  The sudoers policy only allows root or a 
            user with the ALL privilege on the current host to use 
            this option.

您可以像这样一起使用它们：

$ sudo -lU <user>

例子

$ sudo -lU joeuser
Matching Defaults entries for joeuser on this host:
    requiretty, !visiblepw, always_set_home, env_reset, env_keep="COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR LS_COLORS", env_keep+="MAIL PS1 PS2
    QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE", env_keep+="LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES", env_keep+="LC_MONETARY LC_NAME
    LC_NUMERIC LC_PAPER LC_TELEPHONE", env_keep+="LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET XAUTHORITY", secure_path=/sbin\:/bin\:/usr/sbin\:/usr/bin

User joeuser may run the following commands on this host:
    (root) ALL
    (ALL : ALL) ALL

此外，您可以使用多个-l开关（即-ll）来获取其他用户权限的更详细列表，例如：

$ sudo -llU joeuser
Matching Defaults entries for joeuser on this host:
    !visiblepw, always_set_home, match_group_by_gid, always_query_group_plugin, env_reset, env_keep="COLORS DISPLAY
    HOSTNAME HISTSIZE KDEDIR LS_COLORS", env_keep+="MAIL PS1 PS2 QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE",
    env_keep+="LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES", env_keep+="LC_MONETARY LC_NAME LC_NUMERIC
    LC_PAPER LC_TELEPHONE", env_keep+="LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET XAUTHORITY",
    secure_path=/sbin\:/bin\:/usr/sbin\:/usr/bin

User joeuser may run the following commands on this host:

LDAP Role: lab-data-services-all
    RunAsUsers: root
    Commands:
        ALL

LDAP Role: ad-data_services
    RunAsUsers: root
    Commands:
        ALL

LDAP Role: ALL
    RunAsUsers: ALL
    RunAsGroups: ALL
    Commands:
        ALL

sudo 版本

$ sudo -V
Sudo version 1.8.6p3
Sudoers policy plugin version 1.8.6p3
Sudoers file grammar version 42
Sudoers I/O plugin version 1.8.6p3

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