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nessusThis script is Copyright (C) 2022-2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2022-7647.NASL
HistoryNov 09, 2022 - 12:00 a.m.

RHEL 8 : httpd:2.4 (RHSA-2022:7647)

2022-11-0900:00:00
This script is Copyright (C) 2022-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
21
remote host
redhat enterprise linux 8
vulnerabilities
rhsa-2022:7647
httpd
mod_lua
mod_sed
mod_proxy_ajp
mod_proxy
core
cve-2022-22719
cve-2022-22721
cve-2022-23943
cve-2022-26377
cve-2022-28614
cve-2022-28615
cve-2022-29404
cve-2022-30522
cve-2022-30556
cve-2022-31813
information disclosure
dos vulnerability
buffer overflow
out-of-bounds read
request smuggling
x-forwarded-for

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

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

AI Score

9.3

Confidence

Low

EPSS

0.348

Percentile

97.1%

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:7647 advisory.

  • httpd: mod_lua: Use of uninitialized value of in r:parsebody (CVE-2022-22719)

  • httpd: core: Possible buffer overflow with very large or unlimited LimitXMLRequestBody (CVE-2022-22721)

  • httpd: mod_sed: Read/write beyond bounds (CVE-2022-23943)

  • httpd: mod_proxy_ajp: Possible request smuggling (CVE-2022-26377)

  • httpd: Out-of-bounds read via ap_rwrite() (CVE-2022-28614)

  • httpd: Out-of-bounds read in ap_strcmp_match() (CVE-2022-28615)

  • httpd: mod_lua: DoS in r:parsebody (CVE-2022-29404)

  • httpd: mod_sed: DoS vulnerability (CVE-2022-30522)

  • httpd: mod_lua: Information disclosure with websockets (CVE-2022-30556)

  • httpd: mod_proxy: X-Forwarded-For dropped by hop-by-hop mechanism (CVE-2022-31813)

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-2022:7647. The text
# itself is copyright (C) Red Hat, Inc.
##

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

if (description)
{
  script_id(167152);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id(
    "CVE-2022-22719",
    "CVE-2022-22721",
    "CVE-2022-23943",
    "CVE-2022-26377",
    "CVE-2022-28614",
    "CVE-2022-28615",
    "CVE-2022-29404",
    "CVE-2022-30522",
    "CVE-2022-30556",
    "CVE-2022-31813"
  );
  script_xref(name:"RHSA", value:"2022:7647");

  script_name(english:"RHEL 8 : httpd:2.4 (RHSA-2022:7647)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for httpd:2.4.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2022:7647 advisory.

  - httpd: mod_lua: Use of uninitialized value of in r:parsebody (CVE-2022-22719)

  - httpd: core: Possible buffer overflow with very large or unlimited LimitXMLRequestBody (CVE-2022-22721)

  - httpd: mod_sed: Read/write beyond bounds (CVE-2022-23943)

  - httpd: mod_proxy_ajp: Possible request smuggling (CVE-2022-26377)

  - httpd: Out-of-bounds read via ap_rwrite() (CVE-2022-28614)

  - httpd: Out-of-bounds read in ap_strcmp_match() (CVE-2022-28615)

  - httpd: mod_lua: DoS in r:parsebody (CVE-2022-29404)

  - httpd: mod_sed: DoS vulnerability (CVE-2022-30522)

  - httpd: mod_lua: Information disclosure with websockets (CVE-2022-30556)

  - httpd: mod_proxy: X-Forwarded-For dropped by hop-by-hop mechanism (CVE-2022-31813)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2022/rhsa-2022_7647.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?280fd479");
  # https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.7_release_notes/index
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?790bc9ea");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2022:7647");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2064319");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2064320");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2064322");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2094997");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2095002");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2095006");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2095012");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2095015");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2095018");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2095020");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL httpd:2.4 package based on the guidance in RHSA-2022:7647.");
  script_set_cvss_base_vector("CVSS2#AV:N/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: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-2022-31813");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(125, 200, 348, 444, 770, 787, 789, 908);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/03/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/11/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/09");

  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:httpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:httpd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:httpd-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:httpd-manual");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:httpd-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mod_http2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mod_ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mod_md");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mod_proxy_html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mod_session");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mod_ssl");
  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) 2022-2024 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 appstreams = {
  'httpd:2.4': [
    {
      'repo_relative_urls': [
        'content/dist/rhel8/8.10/aarch64/appstream/debug',
        'content/dist/rhel8/8.10/aarch64/appstream/os',
        'content/dist/rhel8/8.10/aarch64/appstream/source/SRPMS',
        'content/dist/rhel8/8.10/ppc64le/appstream/debug',
        'content/dist/rhel8/8.10/ppc64le/appstream/os',
        'content/dist/rhel8/8.10/ppc64le/appstream/source/SRPMS',
        'content/dist/rhel8/8.10/s390x/appstream/debug',
        'content/dist/rhel8/8.10/s390x/appstream/os',
        'content/dist/rhel8/8.10/s390x/appstream/source/SRPMS',
        'content/dist/rhel8/8.10/x86_64/appstream/debug',
        'content/dist/rhel8/8.10/x86_64/appstream/os',
        'content/dist/rhel8/8.10/x86_64/appstream/source/SRPMS',
        'content/dist/rhel8/8.6/aarch64/appstream/debug',
        'content/dist/rhel8/8.6/aarch64/appstream/os',
        'content/dist/rhel8/8.6/aarch64/appstream/source/SRPMS',
        'content/dist/rhel8/8.6/ppc64le/appstream/debug',
        'content/dist/rhel8/8.6/ppc64le/appstream/os',
        'content/dist/rhel8/8.6/ppc64le/appstream/source/SRPMS',
        'content/dist/rhel8/8.6/s390x/appstream/debug',
        'content/dist/rhel8/8.6/s390x/appstream/os',
        'content/dist/rhel8/8.6/s390x/appstream/source/SRPMS',
        'content/dist/rhel8/8.6/x86_64/appstream/debug',
        'content/dist/rhel8/8.6/x86_64/appstream/os',
        'content/dist/rhel8/8.6/x86_64/appstream/source/SRPMS',
        'content/dist/rhel8/8.8/aarch64/appstream/debug',
        'content/dist/rhel8/8.8/aarch64/appstream/os',
        'content/dist/rhel8/8.8/aarch64/appstream/source/SRPMS',
        'content/dist/rhel8/8.8/ppc64le/appstream/debug',
        'content/dist/rhel8/8.8/ppc64le/appstream/os',
        'content/dist/rhel8/8.8/ppc64le/appstream/source/SRPMS',
        'content/dist/rhel8/8.8/s390x/appstream/debug',
        'content/dist/rhel8/8.8/s390x/appstream/os',
        'content/dist/rhel8/8.8/s390x/appstream/source/SRPMS',
        'content/dist/rhel8/8.8/x86_64/appstream/debug',
        'content/dist/rhel8/8.8/x86_64/appstream/os',
        'content/dist/rhel8/8.8/x86_64/appstream/source/SRPMS',
        'content/dist/rhel8/8.9/aarch64/appstream/debug',
        'content/dist/rhel8/8.9/aarch64/appstream/os',
        'content/dist/rhel8/8.9/aarch64/appstream/source/SRPMS',
        'content/dist/rhel8/8.9/ppc64le/appstream/debug',
        'content/dist/rhel8/8.9/ppc64le/appstream/os',
        'content/dist/rhel8/8.9/ppc64le/appstream/source/SRPMS',
        'content/dist/rhel8/8.9/s390x/appstream/debug',
        'content/dist/rhel8/8.9/s390x/appstream/os',
        'content/dist/rhel8/8.9/s390x/appstream/source/SRPMS',
        'content/dist/rhel8/8.9/x86_64/appstream/debug',
        'content/dist/rhel8/8.9/x86_64/appstream/os',
        'content/dist/rhel8/8.9/x86_64/appstream/source/SRPMS',
        'content/dist/rhel8/8/aarch64/appstream/debug',
        'content/dist/rhel8/8/aarch64/appstream/os',
        'content/dist/rhel8/8/aarch64/appstream/source/SRPMS',
        'content/dist/rhel8/8/ppc64le/appstream/debug',
        'content/dist/rhel8/8/ppc64le/appstream/os',
        'content/dist/rhel8/8/ppc64le/appstream/source/SRPMS',
        'content/dist/rhel8/8/s390x/appstream/debug',
        'content/dist/rhel8/8/s390x/appstream/os',
        'content/dist/rhel8/8/s390x/appstream/source/SRPMS',
        'content/dist/rhel8/8/x86_64/appstream/debug',
        'content/dist/rhel8/8/x86_64/appstream/os',
        'content/dist/rhel8/8/x86_64/appstream/source/SRPMS'
      ],
      'pkgs': [
        {'reference':'httpd-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'httpd-devel-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'httpd-filesystem-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'httpd-manual-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'httpd-tools-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'mod_http2-1.15.7-5.module+el8.6.0+13996+01710940', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'mod_ldap-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'mod_md-2.0.8-8.module+el8.3.0+6814+67d1e611', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
        {'reference':'mod_proxy_html-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
        {'reference':'mod_session-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
        {'reference':'mod_ssl-2.4.37-51.module+el8.7.0+16050+02173b8e', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
      ]
    }
  ]
};

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

var module_ver = get_kb_item('Host/RedHat/appstream/httpd');
if (isnull(module_ver)) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module httpd:2.4');
if ('2.4' >!< module_ver) audit(AUDIT_PACKAGE_NOT_AFFECTED, 'Module httpd:' + module_ver);

var flag = 0;
var appstreams_found = 0;
foreach var module (keys(appstreams)) {
  var appstream = NULL;
  var appstream_name = NULL;
  var appstream_version = NULL;
  var appstream_split = split(module, sep:':', keep:FALSE);
  if (!empty_or_null(appstream_split)) {
    appstream_name = appstream_split[0];
    appstream_version = appstream_split[1];
    if (!empty_or_null(appstream_name)) appstream = get_one_kb_item('Host/RedHat/appstream/' + appstream_name);
  }
  if (!empty_or_null(appstream) && appstream_version == appstream || appstream_name == 'all') {
    appstreams_found++;
    foreach var module_array ( appstreams[module] ) {
      var repo_relative_urls = NULL;
      if (!empty_or_null(module_array['repo_relative_urls'])) repo_relative_urls = module_array['repo_relative_urls'];
      foreach var package_array ( module_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(package_array['reference'])) reference = package_array['reference'];
        if (!empty_or_null(package_array['release'])) _release = 'RHEL' + 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 (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
        if (!empty_or_null(package_array['cves'])) cves = package_array['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 (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module httpd:2.4');

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, 'httpd / httpd-devel / httpd-filesystem / httpd-manual / httpd-tools / etc');
}
VendorProductVersionCPE
redhatenterprise_linuxhttpd-develp-cpe:/a:redhat:enterprise_linux:httpd-devel
redhatenterprise_linuxhttpd-filesystemp-cpe:/a:redhat:enterprise_linux:httpd-filesystem
redhatenterprise_linuxmod_http2p-cpe:/a:redhat:enterprise_linux:mod_http2
redhatenterprise_linuxmod_proxy_htmlp-cpe:/a:redhat:enterprise_linux:mod_proxy_html
redhatenterprise_linuxmod_sslp-cpe:/a:redhat:enterprise_linux:mod_ssl
redhatenterprise_linuxhttpd-toolsp-cpe:/a:redhat:enterprise_linux:httpd-tools
redhatenterprise_linuxhttpd-manualp-cpe:/a:redhat:enterprise_linux:httpd-manual
redhatenterprise_linuxmod_sessionp-cpe:/a:redhat:enterprise_linux:mod_session
redhatenterprise_linuxmod_mdp-cpe:/a:redhat:enterprise_linux:mod_md
redhatenterprise_linux8cpe:/o:redhat:enterprise_linux:8
Rows per page:
1-10 of 121

References

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

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

AI Score

9.3

Confidence

Low

EPSS

0.348

Percentile

97.1%