CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
86.5%
CVSS v3 9.8
**ATTENTION:**Exploitable remotely/low skill level to exploit.
**Vendor:**AVEVA Software, LLC (AVEVA)
**Equipment:**InduSoft Web Studio and InTouch Machine Edition
**Vulnerabilities:**Stack-based buffer overflow
The listed products are vulnerable only if the TCP/IP Server Task is enabled. A remote attacker could send a carefully crafted packet during a tag, alarm, or event related action such as read and write, which may allow remote code execution.
The following versions of InduSoft Web Studio and InTouch Machine Edition, an HMI, are affected:
3.2.1 STACK-BASED BUFFER OVERFLOW CWE-121
A remote user could send a carefully crafted packet to exploit a stack-based buffer overflow vulnerability during tag, alarm, or event related actions such as read and write, with potential for code to be executed.
CVE-2018-10620 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Tenable Research reported this vulnerability to AVEVA and AVEVA reported it to NCCIC.
Users of InduSoft Web Studio v8.1 SP1 are affected and should apply InduSoft Web Studio Hotfix 81.1.00.08 as soon as possible. Users of InduSoft Web Studio v8.1 are also affected and should first upgrade to InduSoft Web Studio v8.1 SP1 and then apply the hotfix.
Users of InTouch Machine Edition 2017 v8.1 SP1 are affected and should apply InTouch Machine Edition Hotfix 81.1.00.08 as soon as possible. Users of InTouch Machine Edition 2017 v8.1 are also affected and should first upgrade to InTouch Machine Edition 2017 v8.1 SP1 and then apply the hotfix.
Software security updates:
To identify which version of InduSoft Web Studio or InTouch Machine Edition you have installed:
AVEVA’s security bulletin LFSEC00000128 is available at the following location:
https://sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityBulletin_LFSec128(002).pdf
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.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10620
www.indusoft.com/File-Management?Command=Core_Download&EntryId=2074
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-18-200-01
cwe.mitre.org/data/definitions/121.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
softwaresupportsp.schneider-electric.com/#/producthub/details?id=5063
twitter.com/CISAgov
twitter.com/intent/tweet?text=AVEVA%20InduSoft%20Web%20Studio%20and%20InTouch%20Machine%20Edition+https://www.cisa.gov/news-events/ics-advisories/icsa-18-200-01
urldefense.proofpoint.com/v2/url?u=https-3A__sw.aveva.com_hubfs_assets-2D2018_pdf_security-2Dbulletin_SecurityBulletin-5FLFSec128-28002-29.pdf&d=DwMGaQ&c=54IZrppPQZKX9mLzcGdPfFD1hxrcB__aEkJFOKJFd00&r=zE5lG3CZZIbdBvT6slVAzQ&m=YHzOx3IxjROa2Y6TDyoej3F3hX3mODG1x0muH-XoFaA&s=yULjWVgHeseMfsZj9PU5fjfvt1zNBSPWyInIQ39XLiE&e=
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-18-200-01&title=AVEVA%20InduSoft%20Web%20Studio%20and%20InTouch%20Machine%20Edition
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: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-18-200-01
www.oig.dhs.gov/
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=AVEVA%20InduSoft%20Web%20Studio%20and%20InTouch%20Machine%20Edition&body=www.cisa.gov/news-events/ics-advisories/icsa-18-200-01
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
AI Score
Confidence
High
EPSS
Percentile
86.5%