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nessusThis script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.CENTOS_RHSA-2020-3220.NASL
HistoryJul 31, 2020 - 12:00 a.m.

CentOS 7 : kernel (CESA-2020:3220)

2020-07-3100:00:00
This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
228

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.002 Low

EPSS

Percentile

56.6%

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:3220 advisory.

  • kernel: use-after-free caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver (CVE-2019-19527)

  • kernel: kernel: DAX hugepages not considered during mremap (CVE-2020-10757)

  • kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)

  • kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:3220 and
# CentOS Errata and Security Advisory 2020:3220 respectively.
##

include('compat.inc');

if (description)
{
  script_id(139235);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/27");

  script_cve_id(
    "CVE-2019-19527",
    "CVE-2020-10757",
    "CVE-2020-12653",
    "CVE-2020-12654"
  );
  script_xref(name:"RHSA", value:"2020:3220");

  script_name(english:"CentOS 7 : kernel (CESA-2020:3220)");

  script_set_attribute(attribute:"synopsis", value:
"The remote CentOS Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the
CESA-2020:3220 advisory.

  - kernel: use-after-free caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver
    (CVE-2019-19527)

  - kernel: kernel: DAX hugepages not considered during mremap (CVE-2020-10757)

  - kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in
    drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)

  - kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in
    drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://lists.centos.org/pipermail/centos-announce/2020-July/035780.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1d164e5e");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/119.html");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/120.html");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/122.html");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/416.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-19527");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-12653");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(119, 120, 122, 416);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-abi-whitelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python-perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list", "Host/cpu");

  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/CentOS/release');
if (isnull(release) || 'CentOS' >!< release) audit(AUDIT_OS_NOT, 'CentOS');
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'CentOS');
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'CentOS 7.x', 'CentOS ' + os_ver);

if (!get_kb_item('Host/CentOS/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$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'CentOS', cpu);

pkgs = [
    {'reference':'bpftool-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-abi-whitelists-3.10.0-1127.18.2.el7', 'release':'CentOS-7'},
    {'reference':'kernel-debug-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-debug-devel-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-devel-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-headers-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-tools-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-tools-libs-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'kernel-tools-libs-devel-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'perf-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'},
    {'reference':'python-perf-3.10.0-1127.18.2.el7', 'cpu':'x86_64', 'release':'CentOS-7'}
];

flag = 0;
foreach package_array ( pkgs ) {
  reference = NULL;
  release = NULL;
  sp = NULL;
  cpu = NULL;
  el_string = NULL;
  rpm_spec_vers_cmp = NULL;
  epoch = NULL;
  allowmaj = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (reference && release) {
    if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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, 'bpftool / kernel / kernel-abi-whitelists / etc');
}
VendorProductVersionCPE
centoscentosbpftoolp-cpe:/a:centos:centos:bpftool
centoscentoskernelp-cpe:/a:centos:centos:kernel
centoscentoskernel-abi-whitelistsp-cpe:/a:centos:centos:kernel-abi-whitelists
centoscentoskernel-debugp-cpe:/a:centos:centos:kernel-debug
centoscentoskernel-debug-develp-cpe:/a:centos:centos:kernel-debug-devel
centoscentoskernel-develp-cpe:/a:centos:centos:kernel-devel
centoscentoskernel-headersp-cpe:/a:centos:centos:kernel-headers
centoscentoskernel-toolsp-cpe:/a:centos:centos:kernel-tools
centoscentoskernel-tools-libsp-cpe:/a:centos:centos:kernel-tools-libs
centoscentoskernel-tools-libs-develp-cpe:/a:centos:centos:kernel-tools-libs-devel
Rows per page:
1-10 of 131

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.002 Low

EPSS

Percentile

56.6%