Debian DLA-2950-1 : python-scrapy - LTS security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-2950. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(158996);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/06");

  script_cve_id("CVE-2021-41125", "CVE-2022-0577");

  script_name(english:"Debian DLA-2950-1 : python-scrapy - LTS security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-2950 advisory.

  - Scrapy is a high-level web crawling and scraping framework for Python. If you use `HttpAuthMiddleware`
    (i.e. the `http_user` and `http_pass` spider attributes) for HTTP authentication, all requests will expose
    your credentials to the request target. This includes requests generated by Scrapy components, such as
    `robots.txt` requests sent by Scrapy when the `ROBOTSTXT_OBEY` setting is set to `True`, or as requests
    reached through redirects. Upgrade to Scrapy 2.5.1 and use the new `http_auth_domain` spider attribute to
    control which domains are allowed to receive the configured HTTP authentication credentials. If you are
    using Scrapy 1.8 or a lower version, and upgrading to Scrapy 2.5.1 is not an option, you may upgrade to
    Scrapy 1.8.1 instead. If you cannot upgrade, set your HTTP authentication credentials on a per-request
    basis, using for example the `w3lib.http.basic_auth_header` function to convert your credentials into a
    value that you can assign to the `Authorization` header of your request, instead of defining your
    credentials globally using `HttpAuthMiddleware`. (CVE-2021-41125)

  - Exposure of Sensitive Information to an Unauthorized Actor in GitHub repository scrapy/scrapy prior to
    2.6.1. (CVE-2022-0577)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://security-tracker.debian.org/tracker/source-package/python-scrapy
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ef161ca1");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2022/dla-2950");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-41125");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2022-0577");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/python-scrapy");
  script_set_attribute(attribute:"solution", value:
"Upgrade the python-scrapy packages.

For Debian 9 stretch, these problems have been fixed in version 1.0.3-2+deb9u1.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0577");

  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:"2021/10/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/03/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/03/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-scrapy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-scrapy-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian 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/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('audit.inc');
include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var release = get_kb_item('Host/Debian/release');
if ( isnull(release) ) audit(AUDIT_OS_NOT, 'Debian');
var release = chomp(release);
if (! preg(pattern:"^(9)\.[0-9]+", string:release)) audit(AUDIT_OS_NOT, 'Debian 9.0', 'Debian ' + release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '9.0', 'prefix': 'python-scrapy', 'reference': '1.0.3-2+deb9u1'},
    {'release': '9.0', 'prefix': 'python-scrapy-doc', 'reference': '1.0.3-2+deb9u1'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (release && prefix && reference) {
    if (deb_check(release:release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'python-scrapy / python-scrapy-doc');
}