Cognex In-Sight OPC Server Deserialization of Untrusted Data (CVE-2021-32935)

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

include('compat.inc');

if (description)
{
  script_id(502390);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/12/04");

  script_cve_id("CVE-2021-32935");
  script_xref(name:"ICSA", value:"21-224-01");

  script_name(english:"Cognex In-Sight OPC Server Deserialization of Untrusted Data (CVE-2021-32935)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The affected Cognex product, the In-Sight OPC Server versions v5.7.4
(96) and prior, deserializes untrusted data, which could allow a
remote attacker access to system level permission commands and local
privilege escalation.

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://www.cisa.gov/uscert/ics/advisories/icsa-21-224-01");
  script_set_attribute(attribute:"solution", value:
"The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original
can be found at CISA.gov.

Cognex recommends users install Version 5.9.2 or later to mitigate this vulnerability.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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: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-2021-32935");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(502);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/05/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/05/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/09/24");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cognex:in-sight_opc_server");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

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

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Cognex');

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

var vuln_cpes = {
    "cpe:/a:cognex:in-sight_opc_server" :
        {"versionEndIncluding" : "5.7.4_\(96\)", "family" : "InSight"}
};

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