PostgreSQL 9.1 < 9.1.9 / 9.2 < 9.2.4 Denial of Service

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(65857);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2013-1901");
  script_bugtraq_id(58878);
  script_xref(name:"VMSA", value:"2013-0005");

  script_name(english:"PostgreSQL 9.1 < 9.1.9 / 9.2 < 9.2.4 Denial of Service");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by a denial of service
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of PostgreSQL installed on the remote host is 9.1.x prior
to 9.1.9 or 9.2.x prior to 9.2.4.  As such, it is potentially affected
by a denial of service vulnerability.  An unprivileged user can run
commands that could interfere with in-progress backups.");
  script_set_attribute(attribute:"see_also", value:"https://www.postgresql.org/about/news/1456/");
  script_set_attribute(attribute:"see_also", value:"http://www.postgresql.org/docs/9.1/static/release-9-1-9.html");
  script_set_attribute(attribute:"see_also", value:"http://www.postgresql.org/docs/9.2/static/release-9-2-4.html");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2013-0005.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PostgreSQL 9.1.9 / 9.2.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/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:N/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");

  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:"2013/04/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/04/08");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:postgresql:postgresql");
  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) 2013-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include("audit.inc");
include("backport.inc");
include("global_settings.inc");
include("misc_func.inc");

port = get_service(svc:"postgresql", default:5432, exit_on_fail:TRUE);

version = get_kb_item_or_exit('database/'+port+'/postgresql/version');
source = get_kb_item_or_exit('database/'+port+'/postgresql/source');
database = get_kb_item('database/'+port+'/postgresql/database_name');

get_backport_banner(banner:source);
if (backported && report_paranoia < 2) audit(AUDIT_BACKPORT_SERVICE, port, 'PostgreSQL server');

ver = split(version, sep:'.');
for (i=0; i < max_index(ver); i++)
  ver[i] = int(ver[i]);

if (
  (ver[0] == 9 && ver[1] == 1 && ver[2] < 9) ||
  (ver[0] == 9 && ver[1] == 2 && ver[2] < 4)
)
{
  if (report_verbosity > 0)
  {
    report = '';
    if(database)
      report += '\n  Database name     : ' + database;
    report +=
      '\n  Version source    : ' + source +
      '\n  Installed version : ' + version +
      '\n  Fixed version     : 9.1.9 / 9.2.4\n';
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, 'PostgreSQL', port, version);