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nessusThis script is Copyright (C) 2006-2021 and is owned by Tenable, Inc. or an Affiliate thereof.FREEBSD_PKG_486AFF579ECD11DAB410000E0C2E438A.NASL
HistoryMay 13, 2006 - 12:00 a.m.

FreeBSD : postgresql -- character conversion and tsearch2 vulnerabilities (486aff57-9ecd-11da-b410-000e0c2e438a)

2006-05-1300:00:00
This script is Copyright (C) 2006-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
6

The postgresql development team reports :

The more severe of the two errors is that the functions that support client-to-server character set conversion can be called from SQL commands by unprivileged users, but these functions are not designed to be safe against malicious choices of argument values. This problem exists in PostgreSQL 7.3.* through 8.0.*. The recommended fix is to disable public EXECUTE access for these functions. This does not affect normal usage of the functions for character set conversion, but it will prevent misuse.

The other error is that the contrib/tsearch2 module misdeclares several functions as returning type ‘internal’ when they do not have any ‘internal’ argument. This breaks the type safety of ‘internal’ by allowing users to construct SQL commands that invoke other functions accepting ‘internal’ arguments. The consequences of this have not been investigated in detail, but it is certainly at least possible to crash the backend.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

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

if (description)
{
  script_id(21425);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2005-1409", "CVE-2005-1410");

  script_name(english:"FreeBSD : postgresql -- character conversion and tsearch2 vulnerabilities (486aff57-9ecd-11da-b410-000e0c2e438a)");
  script_summary(english:"Checks for updated packages in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote FreeBSD host is missing one or more security-related
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The postgresql development team reports :

The more severe of the two errors is that the functions that support
client-to-server character set conversion can be called from SQL
commands by unprivileged users, but these functions are not designed
to be safe against malicious choices of argument values. This problem
exists in PostgreSQL 7.3.* through 8.0.*. The recommended fix is to
disable public EXECUTE access for these functions. This does not
affect normal usage of the functions for character set conversion, but
it will prevent misuse.

The other error is that the contrib/tsearch2 module misdeclares
several functions as returning type 'internal' when they do not have
any 'internal' argument. This breaks the type safety of 'internal' by
allowing users to construct SQL commands that invoke other functions
accepting 'internal' arguments. The consequences of this have not been
investigated in detail, but it is certainly at least possible to crash
the backend."
  );
  # http://www.postgresql.org/about/news.315
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.postgresql.org/about/news.315/"
  );
  # https://vuxml.freebsd.org/freebsd/486aff57-9ecd-11da-b410-000e0c2e438a.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6f3f6664"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:postgresql");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/05/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2006/02/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/05/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"postgresql>=7.2.0<7.2.8")) flag++;
if (pkg_test(save_report:TRUE, pkg:"postgresql>=7.3.0<7.3.10")) flag++;
if (pkg_test(save_report:TRUE, pkg:"postgresql>=7.4.0<7.4.8")) flag++;
if (pkg_test(save_report:TRUE, pkg:"postgresql>=8.0.0<8.0.3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
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