Schneider Electric Modicon Exposure of Sensitive Information to an Unauthorized Actor (CVE-2021-22786)

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

include('compat.inc');

if (description)
{
  script_id(500793);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/10");

  script_cve_id("CVE-2021-22786");

  script_name(english:"Schneider Electric Modicon Exposure of Sensitive Information to an Unauthorized Actor (CVE-2021-22786)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A CWE-200: Information Exposure vulnerability exists that could cause the exposure of sensitive information stored on
the memory of the controller when communicating over the Modbus TCP protocol. Affected Products: Modicon M340 CPU (part
numbers BMXP34*) (Versions prior to V3.30), Modicon M580 CPU (part numbers BMEP* and BMEH*) (Versions prior to SV3.20),
Modicon MC80 (BMKC80) (Versions prior to V1.6), Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) (All
Versions), Modicon Momentum MDI (171CBU*) (Versions prior to V2.3), Legacy Modicon Quantum (All Versions)

  - A CWE-200: Information Exposure vulnerability exists that could cause the exposure of sensitive
    information stored on the memory of the controller when communicating over the Modbus TCP protocol.
    Affected Products: Modicon M340 CPU (part numbers BMXP34*) (Versions prior to V3.30), Modicon M580 CPU
    (part numbers BMEP* and BMEH*) (Versions prior to SV3.20), Modicon MC80 (BMKC80) (Versions prior to V1.6),
    Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) (All Versions), Modicon Momentum MDI
    (171CBU*) (Versions prior to V2.3), Legacy Modicon Quantum (All Versions) (CVE-2021-22786)

This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-221-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-221-04-Modicon_Controllers_Ethernet_Modules_Security_Notification.pdf
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?76c4704b");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-22786");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(200);

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/02/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/02/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/02/08");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp341000_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp342000_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp3420102_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp342010_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp342020_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp342020h_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp3420302_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp3420302h_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp342030_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m340_bmxp342030h_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh582040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh582040c_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh582040s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh584040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh584040c_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh584040s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh586040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh586040c_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmeh586040s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep581020_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep581020h_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep582020_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep582020h_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep582040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep582040h_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep582040s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep583020_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep583040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep584020_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep584040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep584040s_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep585040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep585040c_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep586040_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_m580_bmep586040c_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_mc80_bmkc8020301_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_mc80_bmkc8020310_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_mc80_bmkc8030311_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_momentum_171cbu78090_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_momentum_171cbu98090_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:schneider-electric:modicon_momentum_171cbu98091_firmware");
  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) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Schneider');

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

var vuln_cpes = {
    "cpe:/o:schneider-electric:modicon_m340_bmxp341000_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp342000_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp342010_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp3420102_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp342020_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp342020h_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp342030_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp3420302_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp3420302h_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m340_bmxp342030h_firmware" :
        {"versionEndExcluding" : "3.40", "family" : "ModiconM340"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh582040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh582040c_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh582040s_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh584040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh584040c_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh584040s_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh586040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh586040c_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmeh586040s_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep581020_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep581020h_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep582020_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep582020h_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep582040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep582040h_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep582040s_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep583020_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep583040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep584020_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep584040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep584040s_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep585040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep585040c_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep586040_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_m580_bmep586040c_firmware" :
        {"versionEndIncluding" : "3.20", "family" : "ModiconM580"},
    "cpe:/o:schneider-electric:modicon_momentum_171cbu78090_firmware" :
        {"versionEndExcluding" : "2.4", "family" : "MomentumUnity"},
    "cpe:/o:schneider-electric:modicon_momentum_171cbu98090_firmware" :
        {"versionEndExcluding" : "2.4", "family" : "MomentumUnity"},
    "cpe:/o:schneider-electric:modicon_momentum_171cbu98091_firmware" :
        {"versionEndExcluding" : "2.4", "family" : "MomentumUnity"},
    "cpe:/o:schneider-electric:modicon_mc80_bmkc8020301_firmware" :
        {"versionEndExcluding" : "1.70", "family" : "ModiconMC80"},
    "cpe:/o:schneider-electric:modicon_mc80_bmkc8020310_firmware" :
        {"versionEndExcluding" : "1.70", "family" : "ModiconMC80"},
    "cpe:/o:schneider-electric:modicon_mc80_bmkc8030311_firmware" :
        {"versionEndExcluding" : "1.70", "family" : "ModiconMC80"}
};

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