4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
5.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.6%
Successful exploitation of these vulnerabilities could allow a local user to escalate their privileges.
The following Tridium products are affected:
Niagara Windows and Linux Supervisor installations are not impacted.
The QNX procfs service provides access to various process information and assets, which could allow a less privileged process to gain access to a target address space.
CVE-2019-8998 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
A specific utility may allow an attacker to gain read access to privileged files.
CVE-2019-13528 has been assigned to this vulnerability. A CVSS v3 base score of 4.4 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).
Johannes Eger and Fabian Ullrich of the Secure Mobile Networking Lab reported CVE-2019-8998 to BlackBerry. Francisco Tacliad reported CVE-2019-13528 to CISA.
Tridium has released updates that mitigate these vulnerabilities and recommends users update to the versions identified below:
Updates are available by contacting the sales support channel or by contacting the Tridium support team at [email protected]
All Tridium Niagara users for all supported platforms are encouraged to update their systems with these releases to mitigate risk. For further guidance, please contact a Tridium account manager or Customer Support.
In addition to updating to the latest version, Tridium recommends users with affected products take the following steps:
For more information please refer to:
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 us-cert.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 us-cert.gov in the Technical Information Paper, ICS-TIP-12-146-01BβTargeted 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 these vulnerabilities. These vulnerabilities are not exploitable remotely.
support.blackberry.com/kb/articleDetail?articleNumber=000057178
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-13528
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-13528
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-8998
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-8998
cwe.mitre.org/data/definitions/200.html
cwe.mitre.org/data/definitions/285.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Tridium%20Niagara+https://www.cisa.gov/news-events/ics-advisories/icsa-19-262-01
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-19-262-01&title=Tridium%20Niagara
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
www.instagram.com/cisagov
www.linkedin.com/company/cybersecurity-and-infrastructure-security-agency
www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-19-262-01
www.oig.dhs.gov/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-19-262-01
www.tridium.com/~/media/tridium/library/documents/collateral/technical%20bulletins/qnx_vulnerability_fix.ashx?la=en
www.us-cert.gov/ics
www.us-cert.gov/ics
www.us-cert.gov/ics/recommended-practices
www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B
www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Tridium%20Niagara&body=www.cisa.gov/news-events/ics-advisories/icsa-19-262-01
4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
4.4 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
5.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.6%