NewStart CGSL MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2023-0108)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2023-0108. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(187348);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/27");

  script_cve_id("CVE-2021-4028", "CVE-2021-4155");

  script_name(english:"NewStart CGSL MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2023-0108)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 5.04, has kernel packages installed that are affected by multiple
vulnerabilities:

  - A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an
    attacker with local access to setup a socket to listen on a high port allowing for a list element to be
    used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to
    crash the system or possibly escalate privileges on the system. (CVE-2021-4028)

  - A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size
    increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS
    filesystem otherwise not accessible to them. (CVE-2021-4155)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/notice/NS-SA-2023-0108");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-4028");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-4155");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL kernel packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  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-2021-4028");

  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:"2021/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/07/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/12/27");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-abi-whitelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-debug-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-debuginfo-common-x86_64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-sign-keys");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python-perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:5");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 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/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  exit(0);
}

include('rpm.inc');

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

var os_release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(os_release) || os_release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');

if (os_release !~ "CGSL MAIN 5.04")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 5.04');

if (!get_kb_item('Host/ZTE-CGSL/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'NewStart Carrier Grade Server Linux', cpu);

var flag = 0;

var pkgs = {
  'CGSL MAIN 5.04': [
    'kernel-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-abi-whitelists-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-debug-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-debug-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-debug-devel-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-debuginfo-common-x86_64-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-devel-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-headers-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-sign-keys-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-tools-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-tools-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-tools-libs-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'kernel-tools-libs-devel-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'perf-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'perf-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'python-perf-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1',
    'python-perf-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.55.1273.g2e35fb1'
  ]
};
var pkg_list = pkgs[os_release];

foreach (pkg in pkg_list)
  if (rpm_check(release:'ZTE ' + os_release, 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, 'kernel');
}