EulerOS 2.0 SP5 : pki-core (EulerOS-SA-2020-2263)

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

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

if (description)
{
  script_id(142067);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/02/03");

  script_cve_id(
    "CVE-2020-1721"
  );

  script_name(english:"EulerOS 2.0 SP5 : pki-core (EulerOS-SA-2020-2263)");
  script_summary(english:"Checks the rpm output for the updated package.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the pki-core packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerability :

  - A flaw was found in the Key Recovery Authority (KRA)
    Agent Service where it did not properly sanitize the
    recovery ID during a key recovery request, enabling a
    Reflected Cross-Site Scripting (XSS) vulnerability. An
    attacker could trick an authenticated victim into
    executing specially crafted Javascript
    code.(CVE-2020-1721)

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-2020-2263
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b126591a");
  script_set_attribute(attribute:"solution", value:
"Update the affected pki-core package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:R/S:C/C:L/I:L/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-2020-1721");
  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:"2020/10/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pki-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pki-base-java");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pki-ca");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pki-kra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pki-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pki-symkey");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:pki-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros: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) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("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");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(5)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP5", "EulerOS UVP " + uvp);

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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["pki-base-10.5.1-14.h2.eulerosv2r7",
        "pki-base-java-10.5.1-14.h2.eulerosv2r7",
        "pki-ca-10.5.1-14.h2.eulerosv2r7",
        "pki-kra-10.5.1-14.h2.eulerosv2r7",
        "pki-server-10.5.1-14.h2.eulerosv2r7",
        "pki-symkey-10.5.1-14.h2.eulerosv2r7",
        "pki-tools-10.5.1-14.h2.eulerosv2r7"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"5", 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, "pki-core");
}