EulerOS 2.0 SP1 : pki-core (EulerOS-SA-2017-1183)

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

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

if (description)
{
  script_id(103021);
  script_version("3.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id(
    "CVE-2017-7537"
  );

  script_name(english:"EulerOS 2.0 SP1 : pki-core (EulerOS-SA-2017-1183)");
  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 :

  - It was found that a mock CMC authentication plugin with
    a hardcoded secret was accidentally enabled by default
    in the pki-core package. An attacker could potentially
    use this flaw to bypass the regular authentication
    process and trick the CA server into issuing
    certificates. (CVE-2017-7537)

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-2017-1183
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a2ab6ecb");
  script_set_attribute(attribute:"solution", value:
"Update the affected pki-core package.");
  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:"patch_publication_date", value:"2017/08/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/08");

  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-javadoc");
  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) 2017-2021 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 !~ "^(1)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP1", "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-10.3.3-17.h1",
        "pki-base-java-10.3.3-17.h1",
        "pki-ca-10.3.3-17.h1",
        "pki-javadoc-10.3.3-17.h1",
        "pki-kra-10.3.3-17.h1",
        "pki-server-10.3.3-17.h1",
        "pki-symkey-10.3.3-17.h1",
        "pki-tools-10.3.3-17.h1"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"1", 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");
}