CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
90.2%
**ATTENTION:**Remotely exploitable/low skill level to exploit.
Vendor: Schneider Electric
Equipment: Conext ComBox
Vulnerability: Resource Exhaustion
Schneider Electric reports that the vulnerability affects the following Conext ComBox solar battery monitor:
Successful exploitation of this vulnerability could cause the device to self-reboot, constituting a denial of service.
Schneider Electric has released a new version of firmware (V3.03 BN 830) to address this vulnerability. It is available to be downloaded from the following location:
<http://solar.schneider-electric.com/product/conext-combox/>
Users can learn more about this vulnerability and the associated firmware fix by reading Schneider Electricβs security notification SEVD-2017-052-01 on their web site at the following location:
<http://www.schneider-electric.com/ww/en/download/document/SEVD-2017-052-01>
NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
ICS-CERT also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available in the ICSβCERT Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability. This vulnerability is remotely exploitable. Low skill level is needed to exploit.
A series of rapid requests to the device may cause it to reboot.
CVE-2017-6019 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Arik Kublanov and Mark Liapustin of Nation-E Ltd reported this vulnerability.
Critical Infrastructure Sector: Energy
Areas Deployed: Worldwide
Company Headquarters Location: Paris, France
solar.schneider-electric.com/product/conext-combox/
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-6019
www.schneider-electric.com/ww/en/download/document/SEVD-2017-052-01
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-17-061-02
cwe.mitre.org/data/definitions/400.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
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mailto:?subject=Schneider%20Electric%20Conext%20ComBox&body=www.cisa.gov/news-events/ics-advisories/icsa-17-061-02
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
90.2%