EulerOS 2.0 SP8 : subscription-manager (EulerOS-SA-2024-1302)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(191880);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/12");

  script_cve_id("CVE-2023-3899");

  script_name(english:"EulerOS 2.0 SP8 : subscription-manager (EulerOS-SA-2024-1302)");

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

  - A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate
    authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users
    that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a
    low-privileged local user could tamper with the state of the registration, by unregistering the system or
    by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration
    directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an
    unconfined root. (CVE-2023-3899)

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-2024-1302
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4f9ac544");
  script_set_attribute(attribute:"solution", value:
"Update the affected subscription-manager packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/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-2023-3899");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/08/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/03/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/03/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dnf-plugin-subscription-manager");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python2-subscription-manager-rhsm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-subscription-manager-rhsm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-syspurpose");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:subscription-manager");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:subscription-manager-cockpit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:subscription-manager-plugin-container");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:subscription-manager-plugin-ostree");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:subscription-manager-rhsm-certificates");
  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) 2024 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/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("rpm.inc");

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

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (_release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

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 && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "dnf-plugin-subscription-manager-1.23.3-1.h3.eulerosv2r8",
  "python2-subscription-manager-rhsm-1.23.3-1.h3.eulerosv2r8",
  "python3-subscription-manager-rhsm-1.23.3-1.h3.eulerosv2r8",
  "python3-syspurpose-1.23.3-1.h3.eulerosv2r8",
  "subscription-manager-1.23.3-1.h3.eulerosv2r8",
  "subscription-manager-cockpit-1.23.3-1.h3.eulerosv2r8",
  "subscription-manager-plugin-container-1.23.3-1.h3.eulerosv2r8",
  "subscription-manager-plugin-ostree-1.23.3-1.h3.eulerosv2r8",
  "subscription-manager-rhsm-certificates-1.23.3-1.h3.eulerosv2r8"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"8", reference:pkg)) flag++;

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