F5 BIG-IP Edge Client Windows 7.2.1 < 7.2.1.3 / 7.1.6 < 7.1.9.9 Update 1 DLL Hijacking (K33757590)

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

include('deprecated_nasl_level.inc');

include('compat.inc');

if (description)
{
  script_id(151790);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/07/19");

  script_cve_id("CVE-2021-23023");
  script_xref(name:"IAVA", value:"2021-A-0306");

  script_name(english:"F5 BIG-IP Edge Client Windows 7.2.1 < 7.2.1.3 / 7.1.6 < 7.1.9.9 Update 1 DLL Hijacking (K33757590)");

  script_set_attribute(attribute:"synopsis", value:
"A web client installed on the remote Windows host is affected by a DLL hijacking vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of the Big-IP Edge Client Windows Component Installer installed on the remote Windows host is 7.2.1 before
 7.2.1.3, or between 7.1.6 and 7.1.9.9 Update 1. It is, therefore, affected by a DLL hijacking vulnerability. A local 
attacker can exploit this using a malicious DLL to gain privileged or administrator access to the system.");
  script_set_attribute(attribute:"see_also", value:"https://support.f5.com/csp/article/K33757590");
  script_set_attribute(attribute:"solution", value:
"Upgrade client software to a version referenced in the advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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-2021-23023");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/06/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_edge_gateway");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

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

  script_dependencies("f5_bigip_edge_client_win_detect.nbin");
  script_require_keys("installed_sw/Big-IP Edge Gateway Client for Windows");

  exit(0);
}

include("vcf.inc");

get_kb_item_or_exit("SMB/Registry/Enumerated");

var app, app_info, constraints;

app = 'Big-IP Edge Gateway Client for Windows';

app_info = vcf::get_app_info(app:app, win_local:TRUE);

#To clarify versioning information to customer.
app_info.display_version = app_info.display_version + ' (' + app_info.version + ')';

constraints = [
  { 'min_version' : '7210', 'fixed_version' : '7213.2021.527.649', 'fixed_display' : '7.2.1.3 (7213.2021.527.649)' },
  { 'min_version' : '7160', 'fixed_version' : '7199.2021.527.907', 'fixed_display' : '7.1.9.9 (7199.2021.527.907)' }
];

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