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RHEL 7 : rh-nginx114-nginx (RHSA-2019:2775)

🗓️ 06 Nov 2024 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 17 Views

RHEL 7 has nginx packages vulnerable to denial of service issues listed in advisory RHSA-2019:2775

Related
Refs
Code
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Security vulnerabilities in IBM SDK for Node.js might affect the configuration editor used by IBM Business Automation Workflow and IBM Business Process Manager (BPM)
14 Sep 202215:02
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Security Vulnerabilities affect IBM Cloud Private Kubernetes
23 Nov 201916:58
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in HTTP/2 implementation used by Watson Knowledge Catalog for IBM Cloud Pak for Data
11 Mar 202015:28
–ibm
IBM Security Bulletins		Security Bulletin: WebSphere Liberty susceptible to HTTP2 implementation vulnerabilities
26 Mar 202012:19
–ibm
IBM Security Bulletins		Security Bulletin: Rational Asset Analyzer (RAA) is affected by several WebSphere Application Server vulnerabilities.
31 Jan 202017:21
–ibm
IBM Security Bulletins		Security Bulletin: IBM API Connect is vulnerable to denial of service attacks via HTTP/2.
2 Jan 202017:21
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in Node.js affect IBM Cloud App Management
24 Oct 201911:45
–ibm
IBM Security Bulletins		Security Bulletin: A security vulnerability has been identified in nginx shipped with PowerAI Vision
8 Jan 202018:55
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Security Vulnerabilities in IBM WebSphere Application Server Liberty affect IBM License Key Server Administration & Reporting Tool and Agent
21 Dec 201905:05
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in Liberty affect IBM WIoTP MessageGateway
3 Jan 202021:21
–ibm
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2019:2775. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(210459);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/11/07");

  script_cve_id("CVE-2019-9511", "CVE-2019-9513", "CVE-2019-9516");
  script_xref(name:"RHSA", value:"2019:2775");
  script_xref(name:"CEA-ID", value:"CEA-2019-0643");

  script_name(english:"RHEL 7 : rh-nginx114-nginx (RHSA-2019:2775)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for rh-nginx114-nginx.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2019:2775 advisory.

    nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency,
    performance, and low memory usage.

    Security Fix(es):

    * HTTP/2: large amount of data request leads to denial of service (CVE-2019-9511)

    * HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption (CVE-2019-9513)

    * HTTP/2: 0-length headers leads to denial of service (CVE-2019-9516)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
    other related information, refer to the CVE page(s) 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=1735741");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1741860");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1741864");
  # https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_2775.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3204f23a");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2775");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL rh-nginx114-nginx package based on the guidance in RHSA-2019:2775.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/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-2019-9513");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/11/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-nginx114-nginx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-nginx114-nginx-mod-http-image-filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-nginx114-nginx-mod-http-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-nginx114-nginx-mod-http-xslt-filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-nginx114-nginx-mod-mail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-nginx114-nginx-mod-stream");
  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: '7')) audit(AUDIT_OS_NOT, 'Red Hat 7.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/rhel-alt/server/7/7Server/armv8-a/aarch64/rhscl/1/debug',
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/rhscl/1/os',
      'content/dist/rhel-alt/server/7/7Server/armv8-a/aarch64/rhscl/1/source/SRPMS',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhscl/1/debug',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhscl/1/os',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhscl/1/source/SRPMS',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/rhscl/1/debug',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/rhscl/1/os',
      'content/dist/rhel-alt/server/7/7Server/system-z-a/s390x/rhscl/1/source/SRPMS',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhscl/1/debug',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhscl/1/os',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhscl/1/source/SRPMS',
      'content/dist/rhel/power/7/7Server/ppc64/rhscl/1/debug',
      'content/dist/rhel/power/7/7Server/ppc64/rhscl/1/os',
      'content/dist/rhel/power/7/7Server/ppc64/rhscl/1/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhscl/1/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhscl/1/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhscl/1/source/SRPMS',
      'content/dist/rhel/system-z/7/7Server/s390x/rhscl/1/debug',
      'content/dist/rhel/system-z/7/7Server/s390x/rhscl/1/os',
      'content/dist/rhel/system-z/7/7Server/s390x/rhscl/1/source/SRPMS',
      'content/dist/rhel/workstation/7/7Workstation/x86_64/rhscl/1/debug',
      'content/dist/rhel/workstation/7/7Workstation/x86_64/rhscl/1/os',
      'content/dist/rhel/workstation/7/7Workstation/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/power-le/7/7.2/ppc64le/rhscl/1/debug',
      'content/eus/rhel/power-le/7/7.2/ppc64le/rhscl/1/os',
      'content/eus/rhel/power-le/7/7.2/ppc64le/rhscl/1/source/SRPMS',
      'content/eus/rhel/power-le/7/7.3/ppc64le/rhscl/1/debug',
      'content/eus/rhel/power-le/7/7.3/ppc64le/rhscl/1/os',
      'content/eus/rhel/power-le/7/7.3/ppc64le/rhscl/1/source/SRPMS',
      'content/eus/rhel/power-le/7/7.4/ppc64le/rhscl/1/debug',
      'content/eus/rhel/power-le/7/7.4/ppc64le/rhscl/1/os',
      'content/eus/rhel/power-le/7/7.4/ppc64le/rhscl/1/source/SRPMS',
      'content/eus/rhel/power-le/7/7.5/ppc64le/rhscl/1/debug',
      'content/eus/rhel/power-le/7/7.5/ppc64le/rhscl/1/os',
      'content/eus/rhel/power-le/7/7.5/ppc64le/rhscl/1/source/SRPMS',
      'content/eus/rhel/power-le/7/7.6/ppc64le/rhscl/1/debug',
      'content/eus/rhel/power-le/7/7.6/ppc64le/rhscl/1/os',
      'content/eus/rhel/power-le/7/7.6/ppc64le/rhscl/1/source/SRPMS',
      'content/eus/rhel/power-le/7/7.7/ppc64le/rhscl/1/debug',
      'content/eus/rhel/power-le/7/7.7/ppc64le/rhscl/1/os',
      'content/eus/rhel/power-le/7/7.7/ppc64le/rhscl/1/source/SRPMS',
      'content/eus/rhel/power/7/7.2/ppc64/rhscl/1/debug',
      'content/eus/rhel/power/7/7.2/ppc64/rhscl/1/os',
      'content/eus/rhel/power/7/7.2/ppc64/rhscl/1/source/SRPMS',
      'content/eus/rhel/power/7/7.3/ppc64/rhscl/1/debug',
      'content/eus/rhel/power/7/7.3/ppc64/rhscl/1/os',
      'content/eus/rhel/power/7/7.3/ppc64/rhscl/1/source/SRPMS',
      'content/eus/rhel/power/7/7.4/ppc64/rhscl/1/debug',
      'content/eus/rhel/power/7/7.4/ppc64/rhscl/1/os',
      'content/eus/rhel/power/7/7.4/ppc64/rhscl/1/source/SRPMS',
      'content/eus/rhel/power/7/7.5/ppc64/rhscl/1/debug',
      'content/eus/rhel/power/7/7.5/ppc64/rhscl/1/os',
      'content/eus/rhel/power/7/7.5/ppc64/rhscl/1/source/SRPMS',
      'content/eus/rhel/power/7/7.6/ppc64/rhscl/1/debug',
      'content/eus/rhel/power/7/7.6/ppc64/rhscl/1/os',
      'content/eus/rhel/power/7/7.6/ppc64/rhscl/1/source/SRPMS',
      'content/eus/rhel/power/7/7.7/ppc64/rhscl/1/debug',
      'content/eus/rhel/power/7/7.7/ppc64/rhscl/1/os',
      'content/eus/rhel/power/7/7.7/ppc64/rhscl/1/source/SRPMS',
      'content/eus/rhel/server/7/7.1/x86_64/rhscl/1/debug',
      'content/eus/rhel/server/7/7.1/x86_64/rhscl/1/os',
      'content/eus/rhel/server/7/7.1/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/server/7/7.2/x86_64/rhscl/1/debug',
      'content/eus/rhel/server/7/7.2/x86_64/rhscl/1/os',
      'content/eus/rhel/server/7/7.2/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/server/7/7.3/x86_64/rhscl/1/debug',
      'content/eus/rhel/server/7/7.3/x86_64/rhscl/1/os',
      'content/eus/rhel/server/7/7.3/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/server/7/7.4/x86_64/rhscl/1/debug',
      'content/eus/rhel/server/7/7.4/x86_64/rhscl/1/os',
      'content/eus/rhel/server/7/7.4/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/server/7/7.5/x86_64/rhscl/1/debug',
      'content/eus/rhel/server/7/7.5/x86_64/rhscl/1/os',
      'content/eus/rhel/server/7/7.5/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/server/7/7.6/x86_64/rhscl/1/debug',
      'content/eus/rhel/server/7/7.6/x86_64/rhscl/1/os',
      'content/eus/rhel/server/7/7.6/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/server/7/7.7/x86_64/rhscl/1/debug',
      'content/eus/rhel/server/7/7.7/x86_64/rhscl/1/os',
      'content/eus/rhel/server/7/7.7/x86_64/rhscl/1/source/SRPMS',
      'content/eus/rhel/system-z/7/7.2/s390x/rhscl/1/debug',
      'content/eus/rhel/system-z/7/7.2/s390x/rhscl/1/os',
      'content/eus/rhel/system-z/7/7.2/s390x/rhscl/1/source/SRPMS',
      'content/eus/rhel/system-z/7/7.3/s390x/rhscl/1/debug',
      'content/eus/rhel/system-z/7/7.3/s390x/rhscl/1/os',
      'content/eus/rhel/system-z/7/7.3/s390x/rhscl/1/source/SRPMS',
      'content/eus/rhel/system-z/7/7.4/s390x/rhscl/1/debug',
      'content/eus/rhel/system-z/7/7.4/s390x/rhscl/1/os',
      'content/eus/rhel/system-z/7/7.4/s390x/rhscl/1/source/SRPMS',
      'content/eus/rhel/system-z/7/7.5/s390x/rhscl/1/debug',
      'content/eus/rhel/system-z/7/7.5/s390x/rhscl/1/os',
      'content/eus/rhel/system-z/7/7.5/s390x/rhscl/1/source/SRPMS',
      'content/eus/rhel/system-z/7/7.6/s390x/rhscl/1/debug',
      'content/eus/rhel/system-z/7/7.6/s390x/rhscl/1/os',
      'content/eus/rhel/system-z/7/7.6/s390x/rhscl/1/source/SRPMS',
      'content/eus/rhel/system-z/7/7.7/s390x/rhscl/1/debug',
      'content/eus/rhel/system-z/7/7.7/s390x/rhscl/1/os',
      'content/eus/rhel/system-z/7/7.7/s390x/rhscl/1/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'rh-nginx114-nginx-1.14.1-1.el7.1', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'rh-nginx114-nginx-mod-http-image-filter-1.14.1-1.el7.1', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'rh-nginx114-nginx-mod-http-perl-1.14.1-1.el7.1', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'rh-nginx114-nginx-mod-http-xslt-filter-1.14.1-1.el7.1', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'rh-nginx114-nginx-mod-mail-1.14.1-1.el7.1', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'rh-nginx114-nginx-mod-stream-1.14.1-1.el7.1', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
    ]
  }
];

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, 'rh-nginx114-nginx / rh-nginx114-nginx-mod-http-image-filter / etc');
}

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07 Nov 2024 00:00Current
7.5High risk
Vulners AI Score7.5
CVSS 3.17.5
CVSS 27.8
CVSS 37.5
EPSS0.82567
rhel 7nginxvulnerabilitiesdenial of servicecve-2019-9511cve-2019-9513cve-2019-9516
17