EulerOS Virtualization for ARM 64 3.0.2.0 : ruby (EulerOS-SA-2021-2069)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

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

if (description)
{
  script_id(151297);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/11");

  script_cve_id("CVE-2020-25613", "CVE-2021-28965");

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.2.0 : ruby (EulerOS-SA-2021-2069)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the ruby packages installed, the EulerOS
Virtualization for ARM 64 installation on the remote host is affected
by the following vulnerabilities :

  - An issue was discovered in Ruby through 2.5.8, 2.6.x
    through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a
    simple HTTP server bundled with Ruby, had not checked
    the transfer-encoding header value rigorously. An
    attacker may potentially exploit this issue to bypass a
    reverse proxy (which also has a poor header check),
    which may lead to an HTTP Request Smuggling
    attack.(CVE-2020-25613)

  - The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x
    before 2.7.3, and 3.x before 3.0.1 does not properly
    address XML round-trip issues. An incorrect document
    can be produced after parsing and
    serializing.(CVE-2021-28965)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2069
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6731d3e2");
  script_set_attribute(attribute:"solution", value:
"Update the affected ruby packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-28965");

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

  script_set_attribute(attribute:"patch_publication_date", value:"2021/07/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-irb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:ruby-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-bigdecimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-io-console");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-json");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-psych");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygem-rdoc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rubygems");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.2.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.0");
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

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, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["ruby-2.0.0.648-33.h30",
        "ruby-irb-2.0.0.648-33.h30",
        "ruby-libs-2.0.0.648-33.h30",
        "rubygem-bigdecimal-1.2.0-33.h30",
        "rubygem-io-console-0.4.2-33.h30",
        "rubygem-json-1.7.7-33.h30",
        "rubygem-psych-2.0.0-33.h30",
        "rubygem-rdoc-4.0.0-33.h30",
        "rubygems-2.0.14.1-33.h30"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ruby");
}