From: Oguz Bektas <o.bektas@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH v3 access-control 03/17] api: acl: only allow granting SU privilege if user already has it
Date: Wed, 6 Apr 2022 13:57:20 +0200 [thread overview]
Message-ID: <20220406115734.898714-4-o.bektas@proxmox.com> (raw)
In-Reply-To: <20220406115734.898714-1-o.bektas@proxmox.com>
Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
---
v2->v3:
* also check for 'propagate' bit on $param->{path}
src/PVE/API2/ACL.pm | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/src/PVE/API2/ACL.pm b/src/PVE/API2/ACL.pm
index 857c672..7ecf8f0 100644
--- a/src/PVE/API2/ACL.pm
+++ b/src/PVE/API2/ACL.pm
@@ -134,6 +134,10 @@ __PACKAGE__->register_method ({
code => sub {
my ($param) = @_;
+ my $rpcenv = PVE::RPCEnvironment::get();
+ my $authuser = $rpcenv->get_user();
+ my $is_superuser = $rpcenv->check($authuser, $param->{path}, ['SuperUser'], 1);
+
if (!($param->{users} || $param->{groups} || $param->{tokens})) {
raise_param_exc({ map { $_ => "either 'users', 'groups' or 'tokens' is required." } qw(users groups tokens) });
}
@@ -160,6 +164,19 @@ __PACKAGE__->register_method ({
die "role '$role' does not exist\n"
if !$cfg->{roles}->{$role};
+ my $role_privs = $cfg->{roles}->{$role};
+ my $role_contains_superuser = grep { $_ eq 'SuperUser' } keys %$role_privs;
+ if ($role_contains_superuser) {
+ die "only superusers can grant/remove this role!\n"
+ if !$is_superuser;
+
+ # check if user has propagate bit
+ my $user_perms = $rpcenv->permissions($authuser, $param->{path});
+ my $has_propagate = $user_perms->{SuperUser};
+ die "cannot give away superuser on '$param->{path}' without 'propagate' bit!\n"
+ if !$has_propagate;
+ }
+
foreach my $group (split_list($param->{groups})) {
die "group '$group' does not exist\n"
--
2.30.2
next prev parent reply other threads:[~2022-04-06 11:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-06 11:57 [pve-devel] [PATCH v3 access-control++ 00/17] SuperUser privilege Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 access-control 01/17] add "SuperAdministrator" role with the new "SuperUser" privilege Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 access-control 02/17] RPC env: add SuperUser API permission for GUI capabilities Oguz Bektas
2022-04-06 11:57 ` Oguz Bektas [this message]
2022-04-06 11:57 ` [pve-devel] [PATCH v3 access-control 04/17] api: roles: only allow modifying roles to add/remove SU if user has SU themselves Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 access-control 05/17] api: allow superusers to edit tfa and password settings Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 qemu-server 06/17] api: allow SU privileged users to edit root-only options for VM configs Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 qemu-server 07/17] migration tests: mock $rpcenv->check subroutine Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 qemu-server 08/17] api: allow superusers to use 'skiplock' option Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 manager 09/17] api: backup: allow SUs to use 'tmpdir', 'dumpdir' and 'script' options Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 manager 10/17] api: vzdump: allow SUs to use 'bwlimit' and 'ionice' parameters Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 manager 11/17] api: always show login prompt for non-root users on terminal proxy calls Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 manager 12/17] ui: include "SuperUser" in privilege selector Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 manager 13/17] ui: lxc features: check for SU instead of 'root@pam' Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 manager 14/17] ui: adapt sensible 'root@pam' checks to SU Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 container 15/17] fix #2582: api: add checks for 'SuperUser' privilege for root-only options Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 storage 16/17] check_volume_access: allow superusers to pass arbitrary fs paths Oguz Bektas
2022-04-06 11:57 ` [pve-devel] [PATCH v3 docs 17/17] pveum: add SU privilege and SA role Oguz Bektas
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