Pulse Connect Secure < 9.1R11.4 (SA44784)

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

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

if (description)
{
  script_id(148847);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/25");

  script_cve_id(
    "CVE-2021-22893",
    "CVE-2021-22894",
    "CVE-2021-22899",
    "CVE-2021-22900"
  );
  script_xref(name:"IAVA", value:"2021-A-0207-S");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/04/23");
  script_xref(name:"CEA-ID", value:"CEA-2021-0024");

  script_name(english:"Pulse Connect Secure < 9.1R11.4 (SA44784)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the version of Pulse Connect Secure running on the remote host is greater than
9.0R3 and prior to 9.1R11.4. It is, therefore, affected by multiple vulnerabilities including an authentication bypass
vulnerability that can allow an unauthenticated user to perform remote arbitrary file execution on the Pulse Connect
Secure gateway.

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://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Pulse Connect Secure version 9.1R11.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-22894");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-22893");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/04/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/04/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/04/20");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:pulsesecure:pulse_connect_secure");
  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:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("pulse_connect_secure_detect.nbin");
  script_require_keys("installed_sw/Pulse Connect Secure");

  exit(0);
}

include('http.inc');
include('vcf.inc');
include('vcf_extras.inc');

port = get_http_port(default:443, embedded:TRUE);
app_info = vcf::pulse_connect_secure::get_app_info(app:'Pulse Connect Secure', port:port, full_version:TRUE, webapp:TRUE);

# from https://www-prev.pulsesecure.net/techpubs/pulse-connect-secure/pcs/9.1rx/
# 9.1R11.3 is 9.1.11.12173
# 9.1R11.4 is 9.1.11.12319
constraints = [
 {'min_version':'9.0.3', 'max_version':'9.1.11.12173', 'fixed_display':'9.1R11.4 (9.1.11.12319)'}
];

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