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
0.001 Low
EPSS
Percentile
41.4%
Successful exploitation of these vulnerabilities could allow an attacker to remotely delete arbitrary files with system privileges.
Rockwell Automation reports this vulnerability affects the following versions of ThinManager ThinServer, a thin client and remote desktop protocol (RDP) server management software:
3.2.1 IMPROPER INPUT VALIDATION CWE-20
Due to improper input validation, an integer overflow condition exists in the affected products. When the ThinManager processes incoming messages, a read access violation occurs and terminates the process. A malicious user could exploit this vulnerability by sending a crafted synchronization protocol message.
CVE-2023-2914 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
3.2.2 IMPROPER INPUT VALIDATION CWE-20
Due to improper input validation, a path traversal vulnerability exists when the ThinManager processes a certain function. If exploited, an unauthenticated remote threat actor can delete arbitrary files with system privileges. A malicious user could exploit this vulnerability by sending a specifically crafted synchronization protocol message.
CVE-2023-2915 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
3.2.3 IMPROPER INPUT VALIDATION CWE-20
Due to improper input validation, a path traversal vulnerability exists, via the file name field, when the ThinManager processes a certain function. If exploited, an unauthenticated remote attacker can upload arbitrary files to any directory on the disk drive where ThinServer.exe is installed. A malicious user could exploit this vulnerability by sending a crafted synchronization protocol message.
CVE-2023-2917 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Rockwell Automation reported these vulnerabilities to CISA.
Rockwell Automation recommends customers apply the following mitigations:
Customers using the affected software are encouraged to apply mitigations, if possible. Additionally, Rockwell Automation encourages customers to implement suggested security best practices to minimize the risk of vulnerability.
For more information, see Rockwell Automationβs Security Advisory.
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 at cisa.gov/ics. Several CISA products detailing cyber defense best 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 at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-2914
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-2915
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-2917
cisa.gov/ics
cisa.gov/ics
cwe.mitre.org/data/definitions/20.html
cwe.mitre.org/data/definitions/20.html
cwe.mitre.org/data/definitions/20.html
downloads.thinmanager.com/Files/11.0.7-ThinManager-Web.exe
downloads.thinmanager.com/Files/11.1.7-ThinManager-Web.exe
downloads.thinmanager.com/Files/11.2.8-ThinManager-Web.exe
downloads.thinmanager.com/Files/12.0.6-ThinManager-Web.exe
downloads.thinmanager.com/Files/12.1.7-ThinManager-Web.exe
downloads.thinmanager.com/Files/ThinManager%2013.0.3.msp
downloads.thinmanager.com/Files/ThinManager%2013.1.1.msp
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140471
twitter.com/CISAgov
twitter.com/intent/tweet?text=Rockwell%20Automation%20ThinManager%20ThinServer+https://www.cisa.gov/news-events/ics-advisories/icsa-23-234-03
us-cert.cisa.gov/ics/Recommended-Practices
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
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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:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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