EulerOS 2.0 SP5 : bluez (EulerOS-SA-2022-1524)

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

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

if (description)
{
  script_id(160126);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/31");

  script_cve_id("CVE-2019-8921", "CVE-2021-43400");

  script_name(english:"EulerOS 2.0 SP5 : bluez (EulerOS-SA-2022-1524)");

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

  - An issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a
    SVC_ATTR_REQ by the SDP implementation. By crafting a malicious CSTATE, it is possible to trick the server
    into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. The
    root cause can be found in the function service_attr_req of sdpd-request.c. The server does not check
    whether the CSTATE data is the same in consecutive requests, and instead simply trusts that it is the
    same. (CVE-2019-8921)

  - 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-2022-1524
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a7de6831");
  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:"2022/04/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bluez");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bluez-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bluez-libs-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros: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/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 SP5");

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

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);

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

var flag = 0;

var pkgs = [
  "bluez-5.44-4.h6.eulerosv2r7",
  "bluez-libs-5.44-4.h6.eulerosv2r7",
  "bluez-libs-devel-5.44-4.h6.eulerosv2r7"
];

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