Re: [PATCH] Remove shell automatic domain transitions to unconfined_t from various pam login programs

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On Sun, Sep 01, 2019 at 02:46:20PM +0200, Dominick Grift wrote:
> I think these may have been adopted from the old Red Hat targeted policy (that model only had unconfined users)

Was this overlooked?

> 
> Some aspect to note:
> 
> 1. The ssh_sysadm_login boolean now applies to unconfined_t as well
> 2. remotelogin only allows unpriv logins
> 
> The rshd module also calls unconfined_shell_domtrans() but I ignored that one because that policy currently does not have support for manual transitions with pam_selinux.
> 
> Signed-off-by: Dominick Grift <dac.override@xxxxxxxxx>
> ---
>  policy/modules/services/remotelogin.te | 4 ----
>  policy/modules/services/ssh.te         | 4 ----
>  policy/modules/system/locallogin.te    | 4 ----
>  3 files changed, 12 deletions(-)
> 
> diff --git a/policy/modules/services/remotelogin.te b/policy/modules/services/remotelogin.te
> index bc2292e3..c7c9c564 100644
> --- a/policy/modules/services/remotelogin.te
> +++ b/policy/modules/services/remotelogin.te
> @@ -91,10 +91,6 @@ optional_policy(`
>  	telnet_use_ptys(remote_login_t)
>  ')
>  
> -optional_policy(`
> -	unconfined_shell_domtrans(remote_login_t)
> -')
> -
>  optional_policy(`
>  	usermanage_read_crack_db(remote_login_t)
>  ')
> diff --git a/policy/modules/services/ssh.te b/policy/modules/services/ssh.te
> index 4e75b6e1..a99ad912 100644
> --- a/policy/modules/services/ssh.te
> +++ b/policy/modules/services/ssh.te
> @@ -328,10 +328,6 @@ optional_policy(`
>  	systemd_dbus_chat_logind(sshd_t)
>  ')
>  
> -optional_policy(`
> -	unconfined_shell_domtrans(sshd_t)
> -')
> -
>  optional_policy(`
>  	xserver_domtrans_xauth(sshd_t)
>  	xserver_link_xdm_keys(sshd_t)
> diff --git a/policy/modules/system/locallogin.te b/policy/modules/system/locallogin.te
> index a56f3d1f..632d2542 100644
> --- a/policy/modules/system/locallogin.te
> +++ b/policy/modules/system/locallogin.te
> @@ -200,10 +200,6 @@ optional_policy(`
>  	systemd_write_inherited_logind_sessions_pipes(local_login_t)
>  ')
>  
> -optional_policy(`
> -	unconfined_shell_domtrans(local_login_t)
> -')
> -
>  optional_policy(`
>  	usermanage_read_crack_db(local_login_t)
>  ')
> -- 
> 2.23.0
> 

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Dominick Grift

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