Moxa AWK-3121 Improper Restriction of Operations Within the Bounds of a Memory Buffer (CVE-2018-10695)

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

include('compat.inc');

if (description)
{
  script_id(501483);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/04");

  script_cve_id("CVE-2018-10695");

  script_name(english:"Moxa AWK-3121 Improper Restriction of Operations Within the Bounds of a Memory Buffer (CVE-2018-10695)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"An issue was discovered on Moxa AWK-3121 1.14 devices. It provides
alert functionality so that an administrator can send emails to
his/her account when there are changes to the device's network.
However, the same functionality allows an attacker to execute commands
on the device. The POST parameters to1,to2,to3,to4 are all
susceptible to buffer overflow. By crafting a packet that contains a
string of 678 characters, it is possible for an attacker to execute
the attack.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # http://packetstormsecurity.com/files/153223/Moxa-AWK-3121-1.14-Information-Disclosure-Command-Execution.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8cdebb36");
  # https://github.com/samuelhuntley/Moxa_AWK_1121/blob/master/Moxa_AWK_1121
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1bb1138e");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2019/Jun/8");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-19-337-02");
  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.

Moxa notes this device has reached end of life and has been replaced by model AWK-1131A (see Moxa bulletin). Moxa
recommends users apply the latest security patch, which can be obtained by contacting customer service at the following
link:

https://www.moxa.com/en/support/support/technical-support

For additional information see the Moxa advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-10695");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(119);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/02");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:moxa:awk-3121_firmware:1.14");
  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/Moxa");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Moxa');

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

var vuln_cpes = {
    "cpe:/o:moxa:awk-3121_firmware:1.14" :
        {"versionEndIncluding" : "1.14", "versionStartIncluding" : "1.14", "family" : "AWK"}
};

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