EulerOS Virtualization for ARM 64 3.0.6.0 : rpm (EulerOS-SA-2021-2015)

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

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

if (description)
{
  script_id(151160);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/12");

  script_cve_id("CVE-2021-20266", "CVE-2021-20271");

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.6.0 : rpm (EulerOS-SA-2021-2015)");

  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 rpm packages installed, the EulerOS
Virtualization for ARM 64 installation on the remote host is affected
by the following vulnerabilities :

  - A flaw was found in RPM's signature check functionality
    when reading a package file. This flaw allows an
    attacker who can convince a victim to install a
    seemingly verifiable package, whose signature header
    was modified, to cause RPM database corruption and
    execute code. The highest threat from this
    vulnerability is to data integrity, confidentiality,
    and system availability.(CVE-2021-20271)

  - A flaw was found in RPM's hdrblobInit() in
    lib/header.c. This flaw allows an attacker who can
    modify the rpmdb to cause an out-of-bounds read. The
    highest threat from this vulnerability is to system
    availability.(CVE-2021-20266)

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-2021-2015
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?45f522e1");
  script_set_attribute(attribute:"solution", value:
"Update the affected rpm packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:R/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-2021-20271");

  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:"2021/06/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python2-rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-build");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-build-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-plugin-selinux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:rpm-sign-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.6.0");
  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 != "3.0.6.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.6.0");
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 = ["python2-rpm-4.14.2-1.h14.eulerosv2r8",
        "python3-rpm-4.14.2-1.h14.eulerosv2r8",
        "rpm-4.14.2-1.h14.eulerosv2r8",
        "rpm-build-4.14.2-1.h14.eulerosv2r8",
        "rpm-build-libs-4.14.2-1.h14.eulerosv2r8",
        "rpm-libs-4.14.2-1.h14.eulerosv2r8",
        "rpm-plugin-selinux-4.14.2-1.h14.eulerosv2r8",
        "rpm-sign-libs-4.14.2-1.h14.eulerosv2r8"];

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, "rpm");
}