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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.FREEBSD_PKG_33922B845F0911EEB63D0897988A1C07.NASL
HistorySep 29, 2023 - 12:00 a.m.

FreeBSD : Remote Code Execution via web-accessible composer (33922b84-5f09-11ee-b63d-0897988a1c07)

2023-09-2900:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
9
freebsd
remote code execution
web-accessible
composer
php
vulnerability
register_argc_argv
cve-2023-43655
upgrade
nessus

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.005 Low

EPSS

Percentile

76.0%

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 33922b84-5f09-11ee-b63d-0897988a1c07 advisory.

  • Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be subject to a remote code execution vulnerability if PHP also has register_argc_argv enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27 patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure register_argc_argv is disabled in php.ini, and avoid publishing composer.phar to the web as this is not best practice. (CVE-2023-43655)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# @NOAGENT@
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2021 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(182378);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/04");

  script_cve_id("CVE-2023-43655");

  script_name(english:"FreeBSD : Remote Code Execution via web-accessible composer (33922b84-5f09-11ee-b63d-0897988a1c07)");

  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 version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the 33922b84-5f09-11ee-b63d-0897988a1c07 advisory.

  - Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible
    server where the composer.phar can be executed as a php file may be subject to a remote code execution
    vulnerability if PHP also has `register_argc_argv` enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27
    patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure
    `register_argc_argv` is disabled in php.ini, and avoid publishing composer.phar to the web as this is not
    best practice. (CVE-2023-43655)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cadfcc27");
  # https://vuxml.freebsd.org/freebsd/33922b84-5f09-11ee-b63d-0897988a1c07.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?59df4df4");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-43655");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/09/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/09/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php80-composer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php80-composer2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php81-composer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php81-composer2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php82-composer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php82-composer2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php83-composer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:php83-composer2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"FreeBSD Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


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);


var flag = 0;

var packages = [
    'php80-composer2<2.6.4',
    'php80-composer<1.10.27',
    'php80-composer>2.0.0<2.6.4',
    'php81-composer2<2.6.4',
    'php81-composer<1.10.27',
    'php81-composer>2.0.0<2.6.4',
    'php82-composer2<2.6.4',
    'php82-composer<1.10.27',
    'php82-composer>2.0.0<2.6.4',
    'php83-composer2<2.6.4',
    'php83-composer<1.10.27',
    'php83-composer>2.0.0<2.6.4'
];

foreach var package( packages ) {
    if (pkg_test(save_report:TRUE, pkg: package)) flag++;
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : pkg_report_get()
  );
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersionCPE
freebsdfreebsdphp80-composerp-cpe:/a:freebsd:freebsd:php80-composer
freebsdfreebsdphp80-composer2p-cpe:/a:freebsd:freebsd:php80-composer2
freebsdfreebsdphp81-composerp-cpe:/a:freebsd:freebsd:php81-composer
freebsdfreebsdphp81-composer2p-cpe:/a:freebsd:freebsd:php81-composer2
freebsdfreebsdphp82-composerp-cpe:/a:freebsd:freebsd:php82-composer
freebsdfreebsdphp82-composer2p-cpe:/a:freebsd:freebsd:php82-composer2
freebsdfreebsdphp83-composerp-cpe:/a:freebsd:freebsd:php83-composer
freebsdfreebsdphp83-composer2p-cpe:/a:freebsd:freebsd:php83-composer2
freebsdfreebsdcpe:/o:freebsd:freebsd

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.005 Low

EPSS

Percentile

76.0%