FreeBSD : Rust -- Race condition enabling symlink following (ee26f513-826e-11ec-8be6-d4c9ef517024)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, 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('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(157240);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/17");

  script_cve_id("CVE-2022-21658");

  script_name(english:"FreeBSD : Rust -- Race condition enabling symlink following (ee26f513-826e-11ec-8be6-d4c9ef517024)");

  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 ee26f513-826e-11ec-8be6-d4c9ef517024 advisory.

  - Rust is a multi-paradigm, general-purpose programming language designed for performance and safety,
    especially safe concurrency. The Rust Security Response WG was notified that the `std::fs::remove_dir_all`
    standard library function is vulnerable a race condition enabling symlink following (CWE-363). An attacker
    could use this security issue to trick a privileged program into deleting files and directories the
    attacker couldn't otherwise access or delete. Rust 1.0.0 through Rust 1.58.0 is affected by this
    vulnerability with 1.58.1 containing a patch. Note that the following build targets don't have usable APIs
    to properly mitigate the attack, and are thus still vulnerable even with a patched toolchain: macOS before
    version 10.10 (Yosemite) and REDOX. We recommend everyone to update to Rust 1.58.1 as soon as possible,
    especially people developing programs expected to run in privileged contexts (including system daemons and
    setuid binaries), as those have the highest risk of being affected by this. Note that adding checks in
    your codebase before calling remove_dir_all will not mitigate the vulnerability, as they would also be
    vulnerable to race conditions like remove_dir_all itself. The existing mitigation is working as intended
    outside of race conditions. (CVE-2022-21658)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://blog.rust-lang.org/2022/01/20/cve-2022-21658.html");
  # https://vuxml.freebsd.org/freebsd/ee26f513-826e-11ec-8be6-d4c9ef517024.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?eee90821");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/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:L/AC:H/PR:L/UI:N/S:U/C:N/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-2022-21658");

  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:"2022/01/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/01/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/01/31");

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

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 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 = [
    'rust-nightly<1.60.0.20220202',
    'rust<1.58.1'
];

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

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : pkg_report_get()
  );
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");