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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
39.4%
This advisory was originally posted to the HSIN ICS library on August 19, 2021, and is being released to the ICS webpage on www.cisa.gov/uscert.
Successful exploitation of this vulnerability could allow an attacker access to system credentials.
The following software versions are affected:
The affected products utilize a weak encryption algorithm for storage and transmission of sensitive data, which may allow an attacker to more easily obtain credentials used for access.
CVE-2021-32997 has been assigned to this vulnerability. A CVSS v3 base score of 8.2 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).
Ron Brash and Nicolas Harsey from Verve Industrial reported this vulnerability to CISA.
To address this vulnerability, Bently Nevada recommends users obtain 3500 Rack Configuration Version 6.6 or higher from Bently Nevada, which now includes a feature to set enhanced password security. For users that have their 3500 System(s) connected to Bently Nevada’s System 1 software, enhanced password security is supported for System 1 Version 21.2 and higher. Using enhanced password security on the 3500 system will break communications with any earlier version of System 1 below Version 21.2
If users are unable to install the latest version of 3500, Bently Nevada recommends implementing the following temporary mitigations:
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. 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 on the ICS webpage on cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-32997
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-21-231-02
cwe.mitre.org/data/definitions/916.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Baker%20Hughes%20Bently%20Nevada%203500+https://www.cisa.gov/news-events/ics-advisories/icsa-21-231-02
www.cisa.gov/uscert/ics
www.cisa.gov/uscert/ics
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/recommended-practices
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
www.cisa.gov/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
www.instagram.com/cisagov
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mailto:?subject=Baker%20Hughes%20Bently%20Nevada%203500&body=www.cisa.gov/news-events/ics-advisories/icsa-21-231-02
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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
39.4%