PostgreSQL 12.x < 12.18 / 13.x < 13.14 / 14.x < 14.11 / 15.x < 15.6 SQL Injection

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# Portions Copyright (C) 1996-2019, The PostgreSQL Global Development Group
# Portions Copyright (C) 1994, The Regents of the University of California
# Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted, provided that the above copyright notice and this paragraph and the following two paragraphs appear in all copies.
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##

include('compat.inc');

if (description)
{
  script_id(190512);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/02");

  script_cve_id("CVE-2024-0985");
  script_xref(name:"IAVB", value:"2024-B-0009-S");

  script_name(english:"PostgreSQL 12.x < 12.18 / 13.x < 13.14 / 14.x < 14.11 / 15.x < 15.6 SQL Injection");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by an SQL injection vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of PostgreSQL installed on the remote host is 12 prior to 12.18, 13 prior to 13.14, 14 prior to 14.11, or 15
prior to 15.6. It is, therefore, affected by following vulnerability:

  - Late privilege drop in REFRESH MATERIALIZED VIEW CONCURRENTLY in PostgreSQL allows an object creator to
    execute arbitrary SQL functions as the command issuer. The command intends to run SQL functions as the
    owner of the materialized view, enabling safe refresh of untrusted materialized views. The victim is a
    superuser or member of one of the attacker's roles. The attack requires luring the victim into running
    REFRESH MATERIALIZED VIEW CONCURRENTLY on the attacker's materialized view. As part of exploiting this
    vulnerability, the attacker creates functions that use CREATE RULE to convert the internally-built
    temporary table to a view. Versions before PostgreSQL 15.6, 14.11, 13.14, and 12.18 are affected. The only
    known exploit does not work in PostgreSQL 16 and later. For defense in depth, PostgreSQL 16.2 adds the
    protections that older branches are using to fix their vulnerability. (CVE-2024-0985)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.postgresql.org/about/news/postgresql-162-156-1411-1314-and-1218-released-2807/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?64212796");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PostgreSQL 12.18 / 13.14 / 14.11 / 15.6 or later");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-0985");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/02/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/02/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/14");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:postgresql:postgresql");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Databases");

  script_copyright(english:"This script is Copyright (C) 2024-2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("postgres_installed_windows.nbin", "postgres_installed_nix.nbin", "postgresql_version.nbin");
  script_require_ports("Services/postgresql", 5432, "installed_sw/PostgreSQL", "Settings/ParanoidReport");

  exit(0);
}


include('vcf_extras_postgresql.inc');

var app = 'PostgreSQL';
var win_local = TRUE;

if (!get_kb_item('SMB/Registry/Enumerated'))
  win_local = FALSE;

var port = get_service(svc:'postgresql', default:5432);
var kb_base = 'database/' + port + '/postgresql/';
var kb_ver = NULL;
var kb_path = kb_base + 'version';
var ver = get_kb_item(kb_path);
if (!empty_or_null(ver)) kb_ver = kb_path;

var app_info = vcf::postgresql::get_app_info(app:app, port:port, kb_ver:kb_ver, kb_base:kb_base, win_local:win_local);
vcf::check_granularity(app_info:app_info, sig_segments:2);

#  12.18 / 13.14 / 14.11 / 15.6
var constraints = [
  { 'min_version' : '12', 'fixed_version' : '12.18' },
  { 'min_version' : '13', 'fixed_version' : '13.14' },
  { 'min_version' : '14', 'fixed_version' : '14.11' },
  { 'min_version' : '15', 'fixed_version' : '15.6' }
];

vcf::postgresql::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE, flags:{sqli:TRUE});