Vulnerabilities > CVE-2016-1889 - Integer Overflow or Wraparound vulnerability in Freebsd

#
# (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(95588);
  script_version("3.4");
  script_cvs_date("Date: 2018/11/10 11:49:46");

  script_cve_id("CVE-2016-1889");
  script_xref(name:"FreeBSD", value:"SA-16:38.bhyve");

  script_name(english:"FreeBSD : FreeBSD -- bhyve(8) virtual machine escape (e722e3c6-bbee-11e6-b1cf-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:
"The bounds checking of accesses to guest memory greater than 4GB by
device emulations is subject to integer overflow. Impact : For a bhyve
virtual machine with more than 3GB of guest memory configured, a
malicious guest could craft device descriptors that could give it
access to the heap of the bhyve process. Since the bhyve process is
running as root, this may allow guests to obtain full control of the
hosts they're running on."
  );
  # https://vuxml.freebsd.org/freebsd/e722e3c6-bbee-11e6-b1cf-14dae9d210b8.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?7a685d8c"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");

  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:"2016/12/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/12/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/12/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 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_4")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=10.3<10.3_13")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=10.2<10.2_26")) flag++;
if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=10.1<10.1_43")) 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");

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

include("compat.inc");

if (description)
{
  script_id(106503);
  script_version("1.12");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id(
    "CVE-2016-1889",
    "CVE-2016-6559",
    "CVE-2016-7426",
    "CVE-2016-7427",
    "CVE-2016-7428",
    "CVE-2016-7429",
    "CVE-2016-7431",
    "CVE-2016-7433",
    "CVE-2016-7434",
    "CVE-2016-8610",
    "CVE-2016-8858",
    "CVE-2016-9310",
    "CVE-2016-9311",
    "CVE-2016-9312",
    "CVE-2016-10009",
    "CVE-2016-10010"
  );
  script_bugtraq_id(
    93776,
    93841,
    94444,
    94446,
    94447,
    94448,
    94450,
    94451,
    94452,
    94453,
    94454,
    94455,
    94694,
    94968,
    94972
  );
  script_xref(name:"CERT", value:"633847");
  script_xref(name:"FreeBSD", value:"SA-16:29.bspatch");
  script_xref(name:"FreeBSD", value:"SA-16:31.libarchive");
  script_xref(name:"FreeBSD", value:"SA-16:33.openssh");
  script_xref(name:"FreeBSD", value:"SA-16:35.openssl");
  script_xref(name:"FreeBSD", value:"SA-16:37.libc");
  script_xref(name:"FreeBSD", value:"SA-16:38.bhyve");
  script_xref(name:"FreeBSD", value:"SA-16:39.ntp");
  script_xref(name:"FreeBSD", value:"SA-17:01.openssh");

  script_name(english:"pfSense < 2.3.3 Multiple Vulnerabilities (SA-17_01 - SA-17_03)");
  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 affected by multiple vulnerabilities as stated in the
referenced vendor advisories.");
  script_set_attribute(attribute:"see_also", value:"https://doc.pfsense.org/index.php/2.3.3_New_Features_and_Changes");
  # https://www.pfsense.org/security/advisories/pfSense-SA-17_01.webgui.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?96e388ec");
  # https://www.pfsense.org/security/advisories/pfSense-SA-17_02.webgui.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?871cf23b");
  # https://www.pfsense.org/security/advisories/pfSense-SA-17_03.webgui.asc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?36b6ea9d");
  script_set_attribute(attribute:"solution", value:
"Upgrade to pfSense version 2.3.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-6559");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/02/17");
  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" : "2.3.3" }
];

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