9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
0.004 Low
EPSS
Percentile
75.1%
This advisory was originally posted to the US-CERT secure Portal library on November 5, 2015, and is being released to the ICS-CERT web site.
Independent researcher Maxim Rupp has identified two vulnerabilities in Honeywell’s Midas gas detector. Honeywell has produced firmware versions to mitigate these vulnerabilities.
These vulnerabilities could be exploited remotely.
The following Midas versions are affected:
Successful exploitation of these vulnerabilities could allow a remote attacker to gain unauthenticated access to the device, potentially allowing configuration changes, as well as the initiation of calibration or test processes.
Impact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation.
Honeywell is a US-based company that maintains offices worldwide.
The affected products, Midas and Midas Black gas detectors, test air for specific toxic, flammable, and ambient gases. According to Honeywell, Midas gas detectors are deployed across several sectors including Chemical, Commercial Facilities, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems. Honeywell estimates that these products are used worldwide.
The web server interface allows the authentication process to be bypassed, potentially allowing unauthorized configuration changes to be made to the device, as well as the initiation of calibration or test processes.
CVE-2015-7907NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7907, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L).CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L, web site last accessed December 03, 2015.
The user’s password is not encrypted during transmission.
CVE-2015-7908NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7908, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. has been assigned to this vulnerability. A CVSS v3 base score of 9.4 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L).CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L, web site last accessed December 03, 2015.
These vulnerabilities could be exploited remotely.
No known public exploits specifically target these vulnerabilities.
An attacker with low skill would be able to exploit these vulnerabilities.
Honeywell has released new firmware versions of the Midas and Midas Black gas detectors, which address the identified vulnerabilities. The new firmware versions for the Midas gas detector, Version 1.13b3, and the Midas Black gas detector, Version 2.13b3, are available at the following URL:
<http://www.honeywellanalytics.com/en-ca/products/Midas>
Honeywell recommends that new versions should be installed on all affected products. Until a new version is applied, Honeywell strongly suggests that customers with affected products should take the following steps to protect themselves:
Honeywell’s Security Notification, SN 2015-10-14 01 is available at the following URL:
<http://www.honeywellanalytics.com/en/products/Midas>
ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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 at: http://ics-cert.us-cert.gov/content/recommended-practices. 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 ICS‑CERT Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site (http://ics-cert.us-cert.gov/).
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.
www.honeywellanalytics.com/en-ca/products/Midas
www.honeywellanalytics.com/en/products/Midas
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mailto:?subject=Honeywell%20Midas%20Gas%20Detector%20Vulnerabilities&body=www.cisa.gov/news-events/ics-advisories/icsa-15-309-02
9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
0.004 Low
EPSS
Percentile
75.1%