Apache Tomcat 9.0.0.M1 < 9.0.38

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##

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

if (description)
{
  script_id(141446);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/23");

  script_cve_id("CVE-2020-13943");
  script_xref(name:"IAVA", value:"2020-A-0465-S");

  script_name(english:"Apache Tomcat 9.0.0.M1 < 9.0.38");

  script_set_attribute(attribute:"synopsis", value:
"The remote Apache Tomcat server is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of Tomcat installed on the remote host is prior to 9.0.38. It is, therefore, affected by a vulnerability as
referenced in the fixed_in_apache_tomcat_9.0.38_security-9 advisory.

  - If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to
    8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the
    HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP
    headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This
    could lead to users seeing responses for unexpected resources. (CVE-2020-13943)

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/apache/tomcat/commit/55911430df13f8c9998fbdee1f9716994d2db59b
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0656cf04");
  # https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.38
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?771617a1");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Tomcat version 9.0.38 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
  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:L/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-13943");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/09/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/09/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/14");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:tomcat:9");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tomcat_error_version.nasl", "tomcat_win_installed.nbin", "apache_tomcat_nix_installed.nbin", "os_fingerprint.nasl");
  script_require_keys("installed_sw/Apache Tomcat");

  exit(0);
}

include('vcf_extras.inc');

vcf::tomcat::initialize();
var app_info = vcf::combined_get_app_info(app:'Apache Tomcat');

var constraints = [
  { 'min_version' : '9.0.0.M1', 'max_version' : '9.0.37', 'fixed_version' : '9.0.38' }
];

vcf::check_all_backporting(app_info:app_info);
vcf::check_granularity(app_info:app_info, sig_segments:3);
vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);