Vulnerabilities > CVE-2016-1885 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Freebsd 10.1/10.2/9.3

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(106499);
  script_version("1.13");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id(
    "CVE-2015-3197",
    "CVE-2015-5300",
    "CVE-2015-7973",
    "CVE-2015-7974",
    "CVE-2015-7975",
    "CVE-2015-7976",
    "CVE-2015-7977",
    "CVE-2015-7978",
    "CVE-2015-7979",
    "CVE-2015-8138",
    "CVE-2015-8139",
    "CVE-2015-8140",
    "CVE-2015-8158",
    "CVE-2016-0702",
    "CVE-2016-0703",
    "CVE-2016-0704",
    "CVE-2016-0705",
    "CVE-2016-0777",
    "CVE-2016-0778",
    "CVE-2016-0797",
    "CVE-2016-0798",
    "CVE-2016-0799",
    "CVE-2016-0800",
    "CVE-2016-1879",
    "CVE-2016-1882",
    "CVE-2016-1885",
    "CVE-2016-10709"
  );
  script_bugtraq_id(
    77312,
    80695,
    80698,
    80704,
    80754,
    81811,
    81814,
    81815,
    81816,
    81959,
    81960,
    81962,
    81963,
    82102,
    82105,
    82237,
    83705,
    83733,
    83743,
    83754,
    83755,
    83763,
    83764
  );
  script_xref(name:"CERT", value:"583776");
  script_xref(name:"CERT", value:"718152");
  script_xref(name:"EDB-ID", value:"39570");
  script_xref(name:"FreeBSD", value:"SA-16:01.sctp");
  script_xref(name:"FreeBSD", value:"SA-16:02.ntp");
  script_xref(name:"FreeBSD", value:"SA-16:05.tcp");
  script_xref(name:"FreeBSD", value:"SA-16:07.openssh");
  script_xref(name:"FreeBSD", value:"SA-16:09.ntp");
  script_xref(name:"FreeBSD", value:"SA-16:11.openssl");
  script_xref(name:"FreeBSD", value:"SA-16:12.openssl");
  script_xref(name:"FreeBSD", value:"SA-16:15.sysarch");

  script_name(english:"pfSense < 2.3 Multiple Vulnerabilities (SA-16_01 - SA-16_02)");
  script_summary(english:"Checks the version of pfSense.");

  script_set_attribute(attribute:"synopsis", value:
"The remote firewall host is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the remote pfSense
install is prior to 2.3. It is, therefore, affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"see_also", value:"https://doc.pfsense.org/index.php/2.3_New_Features_and_Changes");
  # https://www.pfsense.org/security/advisories/pfSense-SA-16_01.webgui.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b03b53c4");
  # https://www.pfsense.org/security/advisories/pfSense-SA-16_02.webgui.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b296df96");
  script_set_attribute(attribute:"solution", value:
"Upgrade to pfSense version 2.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-0799");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'pfSense authenticated graph status RCE');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/31");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:pfsense:pfsense");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:bsdperimeter:pfsense");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("pfsense_detect.nbin");
  script_require_keys("Host/pfSense");

  exit(0);
}

include("vcf.inc");
include("vcf_extras.inc");

if (!get_kb_item("Host/pfSense")) audit(AUDIT_HOST_NOT, "pfSense");

app_info = vcf::pfsense::get_app_info();
constraints = [
  { "fixed_version" : "2.3"}
];

vcf::pfsense::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_HOLE,
  flags:{xss:TRUE}
);

#
# (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("compat.inc");

if (description)
{
  script_id(92922);
  script_version("2.7");
  script_cvs_date("Date: 2019/04/11 17:23:06");

  script_cve_id("CVE-2016-1885");
  script_xref(name:"FreeBSD", value:"SA-16:15.sysarch");

  script_name(english:"FreeBSD : FreeBSD -- Incorrect argument validation in sysarch(2) (7b6a11b5-600a-11e6-a6c3-14dae9d210b8)");
  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:
"A special combination of sysarch(2) arguments, specify a request to
uninstall a set of descriptors from the LDT. The start descriptor is
cleared and the number of descriptors are provided. Due to lack of
sufficient bounds checking during argument validity verification,
unbound zero'ing of the process LDT and adjacent memory can be
initiated from usermode. Impact : This vulnerability could cause the
kernel to panic. In addition it is possible to perform a local Denial
of Service against the system by unprivileged processes."
  );
  # https://vuxml.freebsd.org/freebsd/7b6a11b5-600a-11e6-a6c3-14dae9d210b8.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?0c3298fe"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/08/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 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", "Settings/ParanoidReport");

  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);


if (report_paranoia < 2) audit(AUDIT_PARANOID);

flag = 0;

if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=11.0<11.0_2")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=10.3<10.3_11")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=10.2<10.2_24")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=10.1<10.1_41")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=9.3<9.3_49")) flag++;

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