EulerOS Virtualization 3.0.2.0 : bluez (EulerOS-SA-2022-1687)

##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(160690);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/30");

  script_cve_id("CVE-2019-8922", "CVE-2021-43400");

  script_name(english:"EulerOS Virtualization 3.0.2.0 : bluez (EulerOS-SA-2022-1687)");

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

  - A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. There isn't any check on
    whether there is enough space in the destination buffer. The function simply appends all data passed to
    it. The values of all attributes that are requested are appended to the output buffer. There are no size
    checks whatsoever, resulting in a simple heap overflow if one can craft a request where the response is
    large enough to overflow the preallocated buffer. This issue exists in service_attr_req gets called by
    process_request (in sdpd-request.c), which also allocates the response buffer. (CVE-2019-8922)

  - An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client
    disconnects during D-Bus processing of a WriteValue call. (CVE-2021-43400)

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-2022-1687
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6e7f95a0");
  script_set_attribute(attribute:"solution", value:
"Update the affected bluez packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-43400");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/05/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bluez-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.0");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 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("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 (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);

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

var flag = 0;

var pkgs = [
  "bluez-libs-5.44-4.h5"
];

foreach (var 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
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "bluez");
}