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nessusThis script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.SL_20220114_KERNEL_ON_SL7_X.NASL
HistoryJan 14, 2022 - 12:00 a.m.

Scientific Linux Security Update : kernel on SL7.x x86_64 (2022:0063)

2022-01-1400:00:00
This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
17

4.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

14.2%

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2022:0063-1 advisory.

  • kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)

  • kernel: fuse: fuse_do_getattr() calls make_bad_inode() in inappropriate situations (CVE-2020-36322)

  • kernel: Heap buffer overflow in firedtv driver (CVE-2021-42739)

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

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##
# The descriptive text is (C) Scientific Linux.
#

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

if (description)
{
  script_id(156757);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/01/14");

  script_cve_id("CVE-2020-25704", "CVE-2020-36322", "CVE-2021-42739");
  script_xref(name:"RHSA", value:"RHSA-2022:0063");

  script_name(english:"Scientific Linux Security Update : kernel on SL7.x x86_64 (2022:0063)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Scientific Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in
the SLSA-2022:0063-1 advisory.

  - kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)

  - kernel: fuse: fuse_do_getattr() calls make_bad_inode() in inappropriate situations (CVE-2020-36322)

  - kernel: Heap buffer overflow in firedtv driver (CVE-2021-42739)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.scientificlinux.org/category/sl-errata/slsa-20220063-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
  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:H/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-2021-42739");

  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:"2020/11/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/01/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fermilab:scientific_linux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:bpftool-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-abi-whitelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf-debuginfo");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022 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/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/RedHat/release');
if (isnull(release) || 'Scientific Linux' >!< release) audit(AUDIT_OS_NOT, 'Scientific Linux');
var os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Scientific Linux');
var os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Scientific Linux 7.x', 'Scientific Linux ' + os_ver);

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

var pkgs = [
    {'reference':'bpftool-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'bpftool-debuginfo-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-abi-whitelists-3.10.0-1160.53.1.el7', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debug-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debug-debuginfo-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debug-devel-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debuginfo-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-debuginfo-common-x86_64-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-devel-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-headers-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-debuginfo-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-libs-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'kernel-tools-libs-devel-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'perf-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'perf-debuginfo-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-perf-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'python-perf-debuginfo-3.10.0-1160.53.1.el7', 'cpu':'x86_64', 'release':'SL7', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var release = NULL;
  var sp = NULL;
  var cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var 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_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, 'bpftool / bpftool-debuginfo / kernel / etc');
}
VendorProductVersionCPE
fermilabscientific_linuxcpe:/o:fermilab:scientific_linux
fermilabscientific_linuxbpftoolp-cpe:/a:fermilab:scientific_linux:bpftool
fermilabscientific_linuxbpftool-debuginfop-cpe:/a:fermilab:scientific_linux:bpftool-debuginfo
fermilabscientific_linuxkernelp-cpe:/a:fermilab:scientific_linux:kernel
fermilabscientific_linuxkernel-abi-whitelistsp-cpe:/a:fermilab:scientific_linux:kernel-abi-whitelists
fermilabscientific_linuxkernel-debugp-cpe:/a:fermilab:scientific_linux:kernel-debug
fermilabscientific_linuxkernel-debug-debuginfop-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo
fermilabscientific_linuxkernel-debug-develp-cpe:/a:fermilab:scientific_linux:kernel-debug-devel
fermilabscientific_linuxkernel-debuginfop-cpe:/a:fermilab:scientific_linux:kernel-debuginfo
fermilabscientific_linuxkernel-debuginfo-common-x86_64p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64
Rows per page:
1-10 of 201

4.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

14.2%