6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.004 Low
EPSS
Percentile
74.3%
**ATTENTION:**Remotely Exploitable/low skill level to exploit
Vendor: Schneider Electric
Equipment: Wonderware InTouch Access Anywhere
Vulnerabilities: Cross-Site Request Forgery, Information Exposure, Inadequate Encryption Strength
The following Wonderware InTouch Access Anywhere versions are affected:
Successful exploitation of these vulnerabilities could allow an attacker to perform actions on behalf of a legitimate user, perform network reconnaissance, and gain access to resources beyond those intended with normal operation of the product.
Schneider Electric has released a new software version to address the identified vulnerabilities and recommends that users of affected versions upgrade to Wonderware InTouch Access Anywhere 2017 (17.0.0).
Users of Wonderware InTouch Access Anywhere can login at the following support site to download the upgrade:
<https://gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22401>
Schneider Electric has issued Security Bulletin LFSEC00000114, which contains additional information:
<http://software.schneider-electric.com/support/cyber-security-updates/>
NCCIC/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. 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 these vulnerabilities.
The client request may be forged from a different site. This will allow an external site to access internal RDP systems on behalf of the currently logged in user.
CVE-2017-5156 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Credentials may be exposed to external systems via specific URL parameters, as arbitrary destination addresses may be specified.
CVE-2017-5158 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been calculated by Schneider Electric; the CVSS vector string is (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
The software will connect via Transport Layer Security without verifying the peerβs SSL certificate properly.
CVE-2017-5160 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).
Ruslan Habalov and Jan Bee of the Google ISA Assessments Team identified these vulnerabilities.
Critical Infrastructure Sectors: Critical Manufacturing, Energy, Healthcare and Public Health, and Water and Wastewater Systems
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Paris, France
software.schneider-electric.com/support/cyber-security-updates/
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-5156
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-5158
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-5160
cwe.mitre.org/data/definitions/200.html
cwe.mitre.org/data/definitions/326.html
cwe.mitre.org/data/definitions/352.html
gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22401
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Schneider%20Electric%20Wonderware%20InTouch%20Access%20Anywhere+https://www.cisa.gov/news-events/ics-advisories/icsa-17-089-01
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-17-089-01&title=Schneider%20Electric%20Wonderware%20InTouch%20Access%20Anywhere
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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-17-089-01
www.oig.dhs.gov/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-17-089-01
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Schneider%20Electric%20Wonderware%20InTouch%20Access%20Anywhere&body=www.cisa.gov/news-events/ics-advisories/icsa-17-089-01
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.004 Low
EPSS
Percentile
74.3%