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Revert MAINTAIN privilege and pg_maintain predefined role.

This reverts the following commits: 4dbdb82513, c2122aae63,
5b1a879943, 9e1e9d6560, ff9618e82a, 60684dd834, 4441fc704d,
and b5d6382496.  A role with the MAINTAIN privilege may be able to
use search_path tricks to escalate privileges to the table owner.
Unfortunately, it is too late in the v16 development cycle to apply
the proposed fix, i.e., restricting search_path when running
maintenance commands.

Bumps catversion.

Reviewed-by: Jeff Davis
Discussion: https://postgr.es/m/E1q7j7Y-000z1H-Hr%40gemulon.postgresql.org
Backpatch-through: 16
This commit is contained in:
Nathan Bossart
2023-07-07 11:25:13 -07:00
parent ec99d6e9c8
commit 151c22deee
41 changed files with 179 additions and 445 deletions

View File

@@ -21,7 +21,7 @@ PostgreSQL documentation
<refsynopsisdiv>
<synopsis>
GRANT { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | TRIGGER | MAINTAIN }
GRANT { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | TRIGGER }
[, ...] | ALL [ PRIVILEGES ] }
ON { [ TABLE ] <replaceable class="parameter">table_name</replaceable> [, ...]
| ALL TABLES IN SCHEMA <replaceable class="parameter">schema_name</replaceable> [, ...] }
@@ -193,7 +193,6 @@ GRANT <replaceable class="parameter">role_name</replaceable> [, ...] TO <replace
<term><literal>USAGE</literal></term>
<term><literal>SET</literal></term>
<term><literal>ALTER SYSTEM</literal></term>
<term><literal>MAINTAIN</literal></term>
<listitem>
<para>
Specific types of privileges, as defined in <xref linkend="ddl-priv"/>.