FreeBSD : ark -- directory traversal (d1ef1138-d273-11ea-a757-e0d55e2a8bf9)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2020 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(139218);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/08/24");

  script_cve_id("CVE-2020-16116");

  script_name(english:"FreeBSD : ark -- directory traversal (d1ef1138-d273-11ea-a757-e0d55e2a8bf9)");
  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:
"KDE Project Security Advisory reports : KDE Project Security
AdvisoryTitle:Ark: maliciously crafted archive can install files
outside the extraction directory.Risk
Rating:ImportantCVE:CVE-2020-16116Versions:ark <= 20.04.3Author:Elvis
Angelaccio <[email protected]>Date:30 July 2020Overview A
maliciously crafted archive with '../' in the file paths would install
files anywhere in the user's home directory upon extraction. Proof of
concept For testing, an example of malicious archive can be found at
https://github.com/jwilk/traversal-archives/releases/download/0/relati
ve2.zip Impact Users can unwillingly install files like a modified
.bashrc, or a malicious script placed in ~/.config/autostart
Workaround Users should not use the 'Extract' context menu from the
Dolphin file manager. Before extracting a downloaded archive using the
Ark GUI, users should inspect it to make sure it doesn't contain
entries with '../' in the file path. Solution Ark 20.08.0 prevents
loading of malicious archives and shows a warning message to the
users.

Alternatively,
https://invent.kde.org/utilities/ark/-/commit/0df592524fed305d6fbe74dd
f8a196bc9ffdb92f can be applied to previous releases. Credits Thanks
to Dominik Penner for finding and reporting this issue and thanks to
Elvis Angelaccio and Albert Astals Cid for fixing it."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://kde.org/info/security/advisory-20200730-1.txt"
  );
  # https://vuxml.freebsd.org/freebsd/d1ef1138-d273-11ea-a757-e0d55e2a8bf9.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?98fc6545"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/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:L/AC:L/PR:N/UI:R/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:"cvss_score_source", value:"CVE-2020-16116");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/31");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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:"ark<20.04.2_1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"ark=20.04.3")) 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");