Siemens CP Path Traversal (CVE-2023-42796)

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

include('compat.inc');

if (description)
{
  script_id(501752);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/21");

  script_cve_id("CVE-2023-42796");

  script_name(english:"Siemens CP Path Traversal (CVE-2023-42796)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A vulnerability has been identified in CP-8031 MASTER MODULE (All
versions < CPCI85 V05.11), CP-8050 MASTER MODULE (All versions <
CPCI85 V05.11). The web server of affected devices fails to properly
sanitize user input for the /sicweb-ajax/tmproot/ endpoint. This could
allow an authenticated remote attacker to traverse directories on the
system and download arbitrary files. By exploring active session IDs,
the vulnerability could potentially be leveraged to escalate
privileges to the administrator role.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-770890.pdf");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/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-2023-42796");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(22);

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/10/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/16");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:cp-8031_firmware:::~~cpci85~~~");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:cp-8050_firmware:::~~cpci85~~~");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Siemens");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Siemens');

var asset = tenable_ot::assets::get(vendor:'Siemens');

var vuln_cpes = {
    "cpe:/o:siemens:cp-8050_firmware:::~~cpci85~~~" :
      {"versionEndExcluding" : "05.11", "family" : "SicamA8000CP805", "orderNumbers" : ["6MF2805-0AA00"]},
    "cpe:/o:siemens:cp-8031_firmware:::~~cpci85~~~" :
      {"versionEndExcluding" : "05.11", "family" : "SicamA8000CP803", "orderNumbers" : ["6MF2803-1AA00"]}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);