PostgreSQL 9.5.x < 9.5.17, 9.6.x < 9.6.13, 10.x < 10.8, 11.x < 11.3 Information Disclosure Vulnerability - Linux

# SPDX-FileCopyrightText: 2019 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:postgresql:postgresql";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.142688");
  script_version("2024-02-15T05:05:40+0000");
  script_tag(name:"last_modification", value:"2024-02-15 05:05:40 +0000 (Thu, 15 Feb 2024)");
  script_tag(name:"creation_date", value:"2019-08-01 07:23:47 +0000 (Thu, 01 Aug 2019)");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-09-30 14:08:00 +0000 (Wed, 30 Sep 2020)");

  script_cve_id("CVE-2019-10130");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("PostgreSQL 9.5.x < 9.5.17, 9.6.x < 9.6.13, 10.x < 10.8, 11.x < 11.3 Information Disclosure Vulnerability - Linux");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2019 Greenbone AG");
  script_family("Databases");
  script_dependencies("postgresql_detect.nasl", "secpod_postgresql_detect_lin.nasl", "secpod_postgresql_detect_win.nasl", "os_detection.nasl");
  script_mandatory_keys("postgresql/detected", "Host/runs_unixoide");

  script_tag(name:"summary", value:"PostgreSQL is prone to an information disclosure vulnerability due to
  selectivity estimators bypass row security policies.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"PostgreSQL maintains statistics for tables by sampling data available in
  columns. This data is consulted during the query planning process. Prior to this release, a user able to execute
  SQL queries with permissions to read a given column could craft a leaky operator that could read whatever data
  had been sampled from that column. If this happened to include values from rows that the user is forbidden to
  see by a row security policy, the user could effectively bypass the policy.");

  script_tag(name:"affected", value:"PostgreSQL versions 9.5.x, 9.6.x, 10.x and 11.x.");

  script_tag(name:"solution", value:"Update to version 9.5.17, 9.6.13, 10.8, 11.3 or later.");

  script_xref(name:"URL", value:"https://www.postgresql.org/about/news/1939/");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if (isnull(port = get_app_port(cpe: CPE)))
  exit(0);

if (!infos = get_app_version_and_location(cpe: CPE, port: port, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
location = infos["location"];

if (version_in_range(version: version, test_version: "9.5", test_version2: "9.5.16")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.5.17", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "9.6", test_version2: "9.6.12")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.6.13", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "10.0", test_version2: "10.7")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "10.8", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "11.0", test_version2: "11.2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "11.3", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);