Vulnerabilities > CVE-2019-10127 - Unspecified vulnerability in Postgresql

047910
CVSS 8.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
postgresql
nessus

Summary

A vulnerability was found in postgresql versions 11.x prior to 11.3. The Windows installer for BigSQL-supplied PostgreSQL does not lock down the ACL of the binary installation directory or the ACL of the data directory; it keeps the inherited ACL. In the default configuration, an attacker having both an unprivileged Windows account and an unprivileged PostgreSQL account can cause the PostgreSQL service account to execute arbitrary code. An attacker having only the unprivileged Windows account can read arbitrary data directory files, essentially bypassing database-imposed read access limitations. An attacker having only the unprivileged Windows account can also delete certain data directory files.

Vulnerable Configurations

Part Description Count
Application
Postgresql
391
OS
Microsoft
1

Nessus

NASL familyDatabases
NASL idPOSTGRESQL_20190509.NASL
descriptionThe version of PostgreSQL installed on the remote host is 9.4.x prior to 9.4.22, 9.5.x prior to 9.5.17, 9.6.x prior to 9.6.13, 10.x prior to 10.8, or 11.x prior to 11.3. It is, therefore, affected by multiple vulnerabilities. - A remote code execution vulnerability exists in both, the BigSQL and the EnterpriseDB Windows installers due to the installers not locking down the permissions of the PostgreSQL binary installation directory and the data directory. An authenticated, local attacker can exploit this, to cause the PostgreSQL service account to execute arbitrary code. (CVE-2019-10127, CVE-2019-10128) - A memory disclosure vulnerability exists in the partition routing component. An authenticated, remote attacker can exploit this, via the execution of a crafted INSERT statement to a partitioned table to disclose memory contents. (CVE-2019-10129) - A security bypass vulnerability exists in the core server. An authenticated, remote attacker can exploit this, via the execution of a crafted SQL query with a leaky operator to disclose potentially sensitive information. (CVE-2019-10130)
last seen2020-06-01
modified2020-06-02
plugin id125264
published2019-05-17
reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/125264
titlePostgreSQL 9.4.x < 9.4.22 / 9.5.x < 9.5.17 / 9.6.x < 9.6.13 / 10.x < 10.8 / 11.x < 11.3 Multiple vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(125264);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/30 13:24:46");

  script_cve_id(
    "CVE-2019-10127",
    "CVE-2019-10128",
    "CVE-2019-10129",
    "CVE-2019-10130"
  );

  script_name(english:"PostgreSQL 9.4.x < 9.4.22 / 9.5.x < 9.5.17 / 9.6.x < 9.6.13 / 10.x < 10.8 / 11.x < 11.3 Multiple vulnerabilities");
  script_summary(english:"Checks the version of PostgreSQL");

  script_set_attribute(attribute:"synopsis", value:"The remote database server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of PostgreSQL installed on the remote host is 9.4.x prior to 9.4.22, 9.5.x prior to 9.5.17, 9.6.x prior to
9.6.13, 10.x prior to 10.8, or 11.x prior to 11.3. It is, therefore, affected by multiple vulnerabilities.

  - A remote code execution vulnerability exists in both, the BigSQL and the EnterpriseDB Windows installers due to the
    installers not locking down the permissions of the PostgreSQL binary installation directory and the data directory.
    An authenticated, local attacker can exploit this, to cause the PostgreSQL service account to execute arbitrary
    code.
    (CVE-2019-10127, CVE-2019-10128)

  - A memory disclosure vulnerability exists in the partition routing component. An authenticated, remote attacker can
    exploit this, via the execution of a crafted INSERT statement to a partitioned table to disclose memory contents.
    (CVE-2019-10129)

  - A security bypass vulnerability exists in the core server. An authenticated, remote attacker can exploit this, via
    the execution of a crafted SQL query with a leaky operator to disclose potentially sensitive information.
    (CVE-2019-10130)
");
  # https://www.postgresql.org/about/news/1939/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?aeba5e75");
  script_set_attribute(attribute:"solution", value:"Upgrade to PostgreSQL 9.4.22 / 9.5.17 / 9.6.13 / 10.8 / 11.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
  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:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-10130");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");


  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:postgresql:postgresql");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("postgresql_version.nbin");
  script_require_ports("Services/postgresql", 5432);

  exit(0);
}

include('vcf.inc');
include('backport.inc');

app = 'PostgreSQL';
port = get_service(svc:'postgresql', default:5432, exit_on_fail:TRUE);
kb_base = 'database/' + port + '/postgresql/';
kb_ver = kb_base + 'version';
get_kb_item_or_exit(kb_ver);

kb_backport = NULL;
source = get_kb_item_or_exit(kb_base + 'source');
get_backport_banner(banner:source);
if (backported) kb_backport = kb_base + 'backported';

app_info = vcf::get_app_info(app:app, port:port, kb_ver:kb_ver, kb_backport:kb_backport, service:TRUE);

constraints = [
  { 'min_version' : '9.4.0', 'fixed_version' : '9.4.22' },
  { 'min_version' : '9.5.0', 'fixed_version' : '9.5.17' },
  { 'min_version' : '9.6.0', 'fixed_version' : '9.6.13' },
  { 'min_version' : '10.0', 'fixed_version' : '10.8' },
  { 'min_version' : '11.0', 'fixed_version' : '11.3' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);