Synology DSM HTTP/2 Implementations Window Size and Stream Prioritization Manipulation (CVE-2019-9511)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(502477);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/02");

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

  script_name(english:"Synology DSM HTTP/2 Implementations Window Size and Stream Prioritization Manipulation (CVE-2019-9511)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"Some HTTP/2 implementations are vulnerable to window size manipulation
and stream prioritization manipulation, potentially leading to a
denial of service. The attacker requests a large amount of data from a
specified resource over multiple streams. They manipulate window size
and stream priority to force the server to queue the data in 1-byte
chunks. Depending on how efficiently this data is queued, this can
consume excess CPU, memory, or both.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a5b121dc");
  # http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c747aef2");
  # http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b87b2fef");
  # http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00003.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3f826b71");
  # http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00005.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b6561d3c");
  # http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00014.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0c75a914");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2692");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2745");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2746");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2775");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2799");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2925");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2939");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2949");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2955");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2966");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:3041");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:3932");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:3933");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:3935");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:4018");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:4019");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:4020");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:4021");
  # https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5ca4073f");
  script_set_attribute(attribute:"see_also", value:"https://kb.cert.org/vuls/id/605641/");
  script_set_attribute(attribute:"see_also", value:"https://kc.mcafee.com/corporate/index?page=content&id=SB10296");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BP556LEG3WENHZI5TAQ6ZEBFTJB4E2IS/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d0d41817");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUBYAF6ED3O4XCHQ5C2HYENJLXYXZC4M/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a28dfd49");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZLUYPYY3RX4ZJDWZRJIKSULYRJ4PXW7/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?059d9833");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/POPAEC4FWL4UU4LDEGPY5NPALU24FFQD/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?eedfd23f");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAZZEVTCN2B4WT6AIBJ7XGYJMBTORJU5/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ffb73998");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHTKU7YQ5EEP2XNSAV4M4VJ7QCBOJMOD/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?855995a0");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2019/Aug/40");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2019/Sep/1");
  script_set_attribute(attribute:"see_also", value:"https://security.netapp.com/advisory/ntap-20190823-0002/");
  script_set_attribute(attribute:"see_also", value:"https://security.netapp.com/advisory/ntap-20190823-0005/");
  script_set_attribute(attribute:"see_also", value:"https://support.f5.com/csp/article/K02591030");
  # https://support.f5.com/csp/article/K02591030?utm_source=f5support&amp%3Butm_medium=RSS
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?203b5929");
  script_set_attribute(attribute:"see_also", value:"https://usn.ubuntu.com/4099-1/");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2019/dsa-4505");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2019/dsa-4511");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2020/dsa-4669");
  script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpujan2021.html");
  script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpuoct2020.html");
  # https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b370bc74");
  script_set_attribute(attribute:"see_also", value:"https://www.synology.com/security/advisory/Synology_SA_19_33");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  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-2019-9511");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(400, 770);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/08/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/10/01");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:synology:diskstation_manager:6.2");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

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

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Synology");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Synology');

var asset = tenable_ot::assets::get(vendor:'Synology');

var vuln_cpes = {
    "cpe:/a:synology:diskstation_manager:6.2" :
        {"versionEndExcluding" : "6.2.2-24922-4", "versionStartIncluding" : "6.2", "family" : "DiskStation"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);