Suricata < 7.0.11 DoS

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

include('compat.inc');

if (description)
{
  script_id(243230);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/08");

  script_cve_id("CVE-2025-53538");
  script_xref(name:"IAVB", value:"2025-B-0126-S");

  script_name(english:"Suricata < 7.0.11 DoS");

  script_set_attribute(attribute:"synopsis", value:
"An IDS/IPS solution running on the remote host is affected by a denial of service vulnerability.");
  script_set_attribute(attribute:"description", value:
"Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the
Suricata community. In versions 7.0.10 and below and 8.0.0-beta1 through 8.0.0-rc1, mishandling of data on HTTP2 stream
0 can lead to uncontrolled memory usage, leading to loss of visibility. Workarounds include disabling the HTTP/2 parser,
and using a signature like drop http2 any any -> any any (frame:http2.hdr; byte_test:1,=,0,3; byte_test:4,=,0,5; sid:
1;) where the first byte test tests the HTTP2 frame type DATA and the second tests the stream id 0. This is fixed in
versions 7.0.11 and 8.0.0.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/OISF/suricata/security/advisories/GHSA-qrr7-crgj-cmh3
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?50113241");
  script_set_attribute(attribute:"solution", value:
"Upgrade Suricata to 7.0.11, 8.0.0 or higher.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A: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_attribute(attribute:"cvss_score_source", value:"CVE-2025-53538");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/07/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/07/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oisf:suricata");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("oisf_suricata_win_installed.nbin", "oisf_suricata_nix_installed.nbin");
  script_require_keys("installed_sw/Open Information Security Foundation Suricata");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::get_app_info(app: 'Open Information Security Foundation Suricata');

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  {'fixed_version': '7.0.11', 'fixed_display' : '7.0.11, 8.0.0 or later'}
];

vcf::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_HOLE
);