EPSON Printers Incorrect Default Permissions (CVE-2020-12695)

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

include('compat.inc');

if (description)
{
  script_id(505062);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/14");

  script_cve_id("CVE-2020-12695");
  script_xref(name:"CEA-ID", value:"CEA-2020-0050");

  script_name(english:"EPSON Printers Incorrect Default Permissions (CVE-2020-12695)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The Open Connectivity Foundation UPnP specification before 2020-04-17
does not forbid the acceptance of a subscription request with a
delivery URL on a different network segment than the fully qualified
event-subscription URL, aka the CallStranger issue.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # http://packetstormsecurity.com/files/158051/CallStranger-UPnP-Vulnerability-Checker.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0c042cd5");
  script_set_attribute(attribute:"see_also", value:"http://www.openwall.com/lists/oss-security/2020/06/08/2");
  # https://corelight.blog/2020/06/10/detecting-the-new-callstranger-upnp-vulnerability-with-zeek/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ea3b09f9");
  script_set_attribute(attribute:"see_also", value:"https://github.com/corelight/callstranger-detector");
  script_set_attribute(attribute:"see_also", value:"https://github.com/yunuscadirci/CallStranger");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/08/msg00011.html");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/08/msg00013.html");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/12/msg00017.html");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3SHL4LOFGHJ3DIXSUIQELGVBDJ7V7LB/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?295dd500");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZDWHKGN3LMGSUEOAAVAMOD3IUIPJVOJ/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bf195f28");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQEYVY4D7LASH6AI4WK3IK2QBFHHF3Q2/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4945377c");
  script_set_attribute(attribute:"see_also", value:"https://usn.ubuntu.com/4494-1/");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2020/dsa-4806");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2021/dsa-4898");
  script_set_attribute(attribute:"see_also", value:"https://www.kb.cert.org/vuls/id/339275");
  # https://www.tenable.com/blog/cve-2020-12695-callstranger-vulnerability-in-universal-plug-and-play-upnp-puts-billions-of
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c1b753eb");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/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-2020-12695");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(276);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/06/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/05");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:ep-101:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:ew-m970a3t:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:m571t:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-100:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-2101:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-2105:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-241:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-320:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-330:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-340:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-4100:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-4105:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-440:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-620:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-630:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-702:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-8500:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-8600:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-960:-");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:epson:xp-970:-");
  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) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/EPSON');

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

var vuln_cpes = {
    "cpe:/h:epson:ep-101:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:ew-m970a3t:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:m571t:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-100:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-2101:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-2105:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-241:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-320:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-330:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-340:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-4100:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-4105:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-440:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-620:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-630:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-702:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-8500:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-8600:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-960:-" :
        {"family" : "EPSON"},
    "cpe:/h:epson:xp-970:-" :
        {"family" : "EPSON"}
};

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