Siemens CP Use of Hard-coded Credentials (CVE-2023-36380)

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

include('compat.inc');

if (description)
{
  script_id(501753);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/21");

  script_cve_id("CVE-2023-36380");

  script_name(english:"Siemens CP Use of Hard-coded Credentials (CVE-2023-36380)");

  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 (only with activated debug support)), CP-8050
MASTER MODULE (All versions < CPCI85 V05.11 (only with activated debug
support)). The affected devices contain a hard-coded ID in the SSH
`authorized_keys` configuration file. An attacker with knowledge of
the corresponding private key could login to the device via SSH. Only
devices with activated debug support are affected.

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-134651.pdf");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/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-2023-36380");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(798);

  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:"2023/10/17");

  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_WARNING);