Mozilla Firefox Security Advisory (MFSA2015-91) - Linux

# Copyright (C) 2021 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:mozilla:firefox";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.2.1.2015.91");
  script_cve_id("CVE-2015-4490");
  script_tag(name:"creation_date", value:"2021-11-11 08:00:11 +0000 (Thu, 11 Nov 2021)");
  script_version("2021-11-15T03:01:29+0000");
  script_tag(name:"last_modification", value:"2021-11-15 03:01:29 +0000 (Mon, 15 Nov 2021)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");

  script_name("Mozilla Firefox Security Advisory (MFSA2015-91) - Linux");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_firefox_detect_lin.nasl");
  script_mandatory_keys("mozilla/firefox/linux/detected");

  script_xref(name:"Advisory-ID", value:"MFSA2015-91");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2015-91/");
  script_xref(name:"URL", value:"https://bugzilla.mozilla.org/show_bug.cgi?id=1086999");

  script_tag(name:"summary", value:"This host is missing a security update for Mozilla Firefox.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"Mozilla Content Security Policy allows for asterisk wildcards in violation of CSP specification
Mozilla security engineer Christoph Kerschbaumer reported a
discrepancy in Mozilla's implementation of Content Security Policy and the CSP specification. The specification
states that blob:, data:, and filesystem:
URLs should be excluded in case of a wildcard when matching source expressions
but Mozilla's implementation allows these in the case of an asterisk wildcard.
This could allow for more permissive CSP usage than expected by a web developer,
possibly allowing for cross-site scripting (XSS) attacks.");

  script_tag(name:"affected", value:"Firefox version(s) below 40.");

  script_tag(name:"solution", value:"The vendor has released an update. Please see the reference(s) for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"executable_version_unreliable");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if (!infos = get_app_version_and_location(cpe: CPE, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
location = infos["location"];

if (version_is_less(version: version, test_version: "40")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "40", install_path: location);
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);