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openvasCopyright (C) 2020 Greenbone AGOPENVAS:1361412562310817524
HistoryNov 10, 2020 - 12:00 a.m.

Mozilla Firefox Security Advisories (MFSA2020-49, MFSA2020-49) - Windows

2020-11-1000:00:00
Copyright (C) 2020 Greenbone AG
plugins.openvas.org
8
mozilla firefox
code execution
vulnerability
version 82.0.3
windows

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.9

Confidence

High

EPSS

0.916

Percentile

99.0%

Mozilla Firefox is prone to a code execution vulnerability.

# SPDX-FileCopyrightText: 2020 Greenbone AG
# 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-only

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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.817524");
  script_version("2024-02-15T05:05:40+0000");
  script_cve_id("CVE-2020-26950");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2024-02-15 05:05:40 +0000 (Thu, 15 Feb 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-12-09 19:42:00 +0000 (Wed, 09 Dec 2020)");
  script_tag(name:"creation_date", value:"2020-11-10 14:49:59 +0530 (Tue, 10 Nov 2020)");
  script_name("Mozilla Firefox Security Advisories (MFSA2020-49, MFSA2020-49) - Windows");

  script_tag(name:"summary", value:"Mozilla Firefox is prone to a code execution vulnerability.");

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

  script_tag(name:"insight", value:"The flaw exists due to 'Write' side effects
  in 'MCallGetProperty' opcode not accounted.");

  script_tag(name:"impact", value:"Successful exploitation will allow
  attackers to execute arbitrary code on the system.");

  script_tag(name:"affected", value:"Mozilla Firefox version before
  82.0.3 on Windows.");

  script_tag(name:"solution", value:"Update to Mozilla Firefox version 82.0.3
  or later, Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"registry");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2020-49/");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("General");
  script_dependencies("gb_firefox_detect_win.nasl", "gb_firefox_detect_portable_win.nasl");
  script_mandatory_keys("Firefox/Win/Ver");
  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);

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

if(version_is_less(version:vers, test_version:"82.0.3")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"82.0.3", install_path:path);
  security_message(port:0, data:report);
  exit(0);
}

exit(99);

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.9

Confidence

High

EPSS

0.916

Percentile

99.0%