5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.8 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
53.0%
In Moxa EDS-G516E Series firmware, Version 5.2 or lower, the affected products use a hard-coded cryptographic key, increasing the possibility that confidential data can be recovered.
This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(501512);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/04");
script_cve_id("CVE-2020-6979");
script_name(english:"Moxa EDS-G516E and EDS-510E Series Ethernet Switches Use of Hard-Coded Cryptographic Key (CVE-2020-6979)");
script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"In Moxa EDS-G516E Series firmware, Version 5.2 or lower, the affected
products use a hard-coded cryptographic key, increasing the
possibility that confidential data can be recovered.
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.us-cert.gov/ics/advisories/icsa-20-056-04");
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 has developed the following solutions to address the vulnerabilities:
- EDS-G516E Series: Download the new firmware.
- EDS-510E Series: please contact Moxa Technical Support for assistance.
- Enable password on configuration file from âConfiguration File Encryptionâ setting to eliminate the potential risk.
- Enable HTTPS from the âManagement Interfaceâ setting.
- Enable âAccount Login Failure Lockoutâ functions to eliminate the potential risk.
Please see Moxaâs security advisory for more information.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/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-2020-6979");
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:"2020/03/24");
script_set_attribute(attribute:"patch_publication_date", value:"2020/03/24");
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:eds-510e_firmware");
script_set_attribute(attribute:"cpe", value:"cpe:/o:moxa:eds-g516e_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/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:eds-g516e_firmware" :
{"versionEndIncluding" : "5.2", "family" : "MoxaEDS"},
"cpe:/o:moxa:eds-510e_firmware" :
{"versionEndIncluding" : "5.2", "family" : "MoxaEDS"}
};
tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);
Vendor | Product | Version | CPE |
---|---|---|---|
moxa | eds-510e_firmware | cpe:/o:moxa:eds-510e_firmware | |
moxa | eds-g516e_firmware | cpe:/o:moxa:eds-g516e_firmware |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.8 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
53.0%