4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
42.8%
CVSS v3 8.8
ATTENTION: Low skill level to exploit
Vendor: AVEVA
Equipment: Wonderware System Platform
Vulnerability: Insufficiently Protected Credentials
This vulnerability could allow unauthorized access to the credentials for the ArchestrA Network User Account.
The following versions of Wonderware System Platform, a unifying supervisory platform, are affected:
Wonderware System Platform uses an ArchestrA network user account for authentication of system processes and inter-node communications. A user with low privileges could make use of an API to obtain the credentials for this account.
CVE-2019-6525 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
Vladimir Dashchenko from Kaspersky Lab reported this vulnerability to AVEVA.
AVEVA recommends users using Wonderware System Platform 2017 Update 2 and prior should upgrade to System Platform 2017 Update 3 as soon as possible. This update can be downloaded from the following location (login required):
<https://softwaresupportsp.schneider-electric.com/#/producthub/details?id=52332>
AVEVA has published Security Bulletin LFSEC00000135. It can be found at the following location:
<https://sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityBulletin_LFSec135.pdf>
AVEVA recommends that users secure industrial control systems according to NIST SP 800-82 Rev. 2:
<https://csrc.nist.gov/publications/detail/sp/800-82/rev-2/final>
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC 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 on the ICS-CERT website 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 NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6525
csrc.nist.gov/publications/detail/sp/800-82/rev-2/final
cwe.mitre.org/data/definitions/522.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
softwaresupportsp.schneider-electric.com/#/producthub/details?id=52332
sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityBulletin_LFSec135.pdf
twitter.com/CISAgov
twitter.com/intent/tweet?text=AVEVA%20Wonderware%20System%20Platform+https://www.cisa.gov/news-events/ics-advisories/icsa-19-029-03
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-19-029-03&title=AVEVA%20Wonderware%20System%20Platform
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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-19-029-03
www.oig.dhs.gov/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-19-029-03
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=AVEVA%20Wonderware%20System%20Platform&body=www.cisa.gov/news-events/ics-advisories/icsa-19-029-03
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:S/C:P/I:N/A:N
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
42.8%