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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2023-3445.NASL
HistoryApr 23, 2024 - 12:00 a.m.

RHEL 8 : Red Hat OpenStack Platform 16.2 (etcd) (RHSA-2023:3445)

2024-04-2300:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
4
rhel 8
red hat openstack platform 16.2
etcd
net/http
golang
information disclosure
hpack decoding
tls handshake
denial of service
excessive resource consumption
infinite loop
improper handling
security advisory

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.5 High

AI Score

Confidence

High

0.024 Low

EPSS

Percentile

90.0%

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:3445 advisory.

A highly-available key value store for shared configuration

Security Fix(es):

* Information discosure via debug function (CVE-2021-28235)

* html/template: improper handling of JavaScript whitespace     (CVE-2023-24540)

* golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding     (CVE-2022-41723)

* crypto/tls: large handshake records may cause panics (CVE-2022-41724)

* net/http mime/multipart: denial of service from excessive resource     consumption (CVE-2022-41725)

* net/http net/textproto: denial of service from excessive memory     allocation (CVE-2023-24534)

* net/http net/textproto mime/multipart: denial of service from excessive     resource consumption (CVE-2023-24536)

* go/parser: Infinite loop in parsing (CVE-2023-24537)

* html/template: backticks not treated as string delimiters     (CVE-2023-24538)

* html/template: improper sanitization of CSS values (CVE-2023-24539)

* html/template: improper handling of empty HTML attributes     (CVE-2023-29400)

For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE     page listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:3445. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(193752);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");

  script_cve_id(
    "CVE-2021-28235",
    "CVE-2022-41723",
    "CVE-2022-41724",
    "CVE-2022-41725",
    "CVE-2023-24534",
    "CVE-2023-24536",
    "CVE-2023-24537",
    "CVE-2023-24538",
    "CVE-2023-24539",
    "CVE-2023-24540",
    "CVE-2023-29400"
  );
  script_xref(name:"RHSA", value:"2023:3445");

  script_name(english:"RHEL 8 : Red Hat OpenStack Platform 16.2 (etcd) (RHSA-2023:3445)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for Red Hat OpenStack Platform 16.2 (etcd).");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as
referenced in the RHSA-2023:3445 advisory.

    A highly-available key value store for shared configuration

    Security Fix(es):

    * Information discosure via debug function (CVE-2021-28235)

    * html/template: improper handling of JavaScript whitespace
    (CVE-2023-24540)

    * golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding
    (CVE-2022-41723)

    * crypto/tls: large handshake records may cause panics (CVE-2022-41724)

    * net/http mime/multipart: denial of service from excessive resource
    consumption (CVE-2022-41725)

    * net/http net/textproto: denial of service from excessive memory
    allocation (CVE-2023-24534)

    * net/http net/textproto mime/multipart: denial of service from excessive
    resource consumption (CVE-2023-24536)

    * go/parser: Infinite loop in parsing (CVE-2023-24537)

    * html/template: backticks not treated as string delimiters
    (CVE-2023-24538)

    * html/template: improper sanitization of CSS values (CVE-2023-24539)

    * html/template: improper handling of empty HTML attributes
    (CVE-2023-29400)

    For more details about the security issue(s), including the impact, a CVSS
    score, acknowledgments, and other related information, refer to the CVE
    page listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2178358");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2178488");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2178492");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184441");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184481");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184482");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184483");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2184484");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2196026");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2196027");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2196029");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_3445.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?83a5d237");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:3445");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL Red Hat OpenStack Platform 16.2 (etcd) package based on the guidance in RHSA-2023:3445.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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:N/AC:L/PR:N/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-2023-24540");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(94, 176, 287, 400, 835);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/02/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/06/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:etcd");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

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

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

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'repo_relative_urls': [
      'content/dist/layered/rhel8/ppc64le/openstack-cinderlib/16.2/debug',
      'content/dist/layered/rhel8/ppc64le/openstack-cinderlib/16.2/os',
      'content/dist/layered/rhel8/ppc64le/openstack-cinderlib/16.2/source/SRPMS',
      'content/dist/layered/rhel8/ppc64le/openstack-deployment-tools/16.2/debug',
      'content/dist/layered/rhel8/ppc64le/openstack-deployment-tools/16.2/os',
      'content/dist/layered/rhel8/ppc64le/openstack-deployment-tools/16.2/source/SRPMS',
      'content/dist/layered/rhel8/ppc64le/openstack/16.2/debug',
      'content/dist/layered/rhel8/ppc64le/openstack/16.2/os',
      'content/dist/layered/rhel8/ppc64le/openstack/16.2/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack-cinderlib/16.2/debug',
      'content/dist/layered/rhel8/x86_64/openstack-cinderlib/16.2/os',
      'content/dist/layered/rhel8/x86_64/openstack-cinderlib/16.2/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack-deployment-tools/16.2/debug',
      'content/dist/layered/rhel8/x86_64/openstack-deployment-tools/16.2/os',
      'content/dist/layered/rhel8/x86_64/openstack-deployment-tools/16.2/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack-tools/16/debug',
      'content/dist/layered/rhel8/x86_64/openstack-tools/16/os',
      'content/dist/layered/rhel8/x86_64/openstack-tools/16/source/SRPMS',
      'content/dist/layered/rhel8/x86_64/openstack/16.2/debug',
      'content/dist/layered/rhel8/x86_64/openstack/16.2/os',
      'content/dist/layered/rhel8/x86_64/openstack/16.2/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'etcd-3.3.23-14.el8ost', 'cpu':'ppc64le', 'release':'8', 'el_string':'el8ost', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openstack-'},
      {'reference':'etcd-3.3.23-14.el8ost', 'cpu':'x86_64', 'release':'8', 'el_string':'el8ost', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'openstack-'}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_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;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        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, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'etcd');
}
VendorProductVersionCPE
redhatenterprise_linuxetcdp-cpe:/a:redhat:enterprise_linux:etcd
redhatenterprise_linux8cpe:/o:redhat:enterprise_linux:8

References

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.5 High

AI Score

Confidence

High

0.024 Low

EPSS

Percentile

90.0%