Apache Shiro < 1.8.0 Authentication Bypass

##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(161731);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/06/02");

  script_cve_id("CVE-2021-41303");

  script_name(english:"Apache Shiro < 1.8.0 Authentication Bypass");

  script_set_attribute(attribute:"synopsis", value:
"A Java security framework is affected by an authentication bypass vulnerability.");
  script_set_attribute(attribute:"description", value:
"Apache Shiro before 1.8.0, when using Apache Shiro with Spring Boot, a specially crafted HTTP request may cause an
authentication bypass.

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://shiro.apache.org/security-reports.html#cve_2021_41303");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Shiro 1.8.0 or later.");
  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_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:H/I:H/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-2021-41303");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/09/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/08/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/06/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:shiro");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("shiro_jar_detection.nbin");
  script_require_keys("installed_sw/Apache Shiro");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::get_app_info(app:'Apache Shiro');

var constraints = [
  {'fixed_version' : '1.8.0'}
];

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