Spring Framework 6.1.x < 6.1.29 / 6.2.x < 6.2.20 / 7.0.x < 7.0.8.1 maxPartSize Ignored in PartEventHttpMessageReader

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

include('compat.inc');

if (description)
{
  script_id(341187);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/28");

  script_cve_id("CVE-2026-47885");
  script_xref(name:"IAVA", value:"2026-A-0898");

  script_name(english:"Spring Framework 6.1.x < 6.1.29 / 6.2.x < 6.2.20 / 7.0.x < 7.0.8.1 maxPartSize Ignored in PartEventHttpMessageReader");

  script_set_attribute(attribute:"synopsis", value:
"The Spring Framework install on the remote host is affected by a resource exhaustion vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Spring Framework installed on the remote host is 6.1.x prior to 6.1.29, 6.2.x prior to 6.2.20, or 7.0.x
prior to 7.0.8.1. It is, therefore, affected by a vulnerability:

  - The PartEventHttpMessageReader in Spring WebFlux does not enforce the maxPartSize limit when maxInMemorySize is set
    to -1. PartEventHttpMessageReader is used when a controller method has an @RequestBody Flux<PartEvent> argument.
    (CVE-2026-47885)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://spring.io/security/cve-2026-47885");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Spring Framework version 6.1.29 / 6.2.20 / 7.0.8.1 / 7.0.9 or later. Note that some fixed releases are
available to Enterprise Support customers only; refer to the vendor advisory for details.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-47885");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-47885");

  script_cwe_id(770);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/08/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/28");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:pivotal_software:spring_framework");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:spring_framework");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  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) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("spring_jar_detection.nbin");
  script_require_keys("installed_sw/Spring Framework");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Spring Framework', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version':'6.1.0', 'fixed_version':'6.1.29'},
        {'min_version':'6.2.0', 'fixed_version':'6.2.20'},
        {'min_version':'7.0.0', 'fixed_version':'7.0.8.1', 'fixed_display':'7.0.8.1 / 7.0.9'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING);
vdf::handle_check_and_report_errors(vdf_result:result);