8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
39.3%
Successful exploitation of these vulnerabilities could result in the attacker impersonating a user, executing arbitrary code, and accessing the connected network.
The following version of DEXGate is affected:
3.2.1 CROSS-SITE SCRIPTING (XSS) CWE-79
The affected product is vulnerable to a cross-site scripting vulnerability, which could allow an attacker to access the web application to introduce arbitrary Java Script by injecting an XSS payload into the βhostnameβ parameter of the vulnerable software.
CVE-2023-40153 has been assigned to this vulnerability. A CVSS v3 base score of 5.4 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
3.2.2 CROSS-SITE REQUEST FORGERY (CSRF) CWE-352
The affected product is vulnerable to a cross-site request forgery vulnerability, which may allow an attacker to perform actions with the permissions of a victim user.
CVE-2023-42435 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L).
3.2.3 IMPROPER AUTHENTICATION CWE-287
The affected product is vulnerable to an improper authentication vulnerability, which may allow an attacker to impersonate a legitimate user as long as the device keeps the session active, since the attack takes advantage of the cookie header to generate βlegitimateβ requests.
CVE-2023-41089 has been assigned to this vulnerability. A CVSS v3 base score of 8.0 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
3.2.4 CLEARTEXT TRANSMISSION OF SENSITIVE INFORMATION CWE-319
The affected product is vulnerable to a cleartext transmission of sensitive information vulnerability, which may allow an attacker with access to the network, where clients have access to the DexGate server, could capture traffic. The attacker can later us the information within it to access the application.
CVE-2023-41088 has been assigned to this vulnerability. A CVSS v3 base score of 6.3 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N).
3.2.5 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200
The affected product is vulnerable to an exposure of sensitive information to an unauthorized actor vulnerability, which may allow an attacker to create malicious requests for obtaining the information of the version about the web server used.
CVE-2023-42666 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:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
AarΓ³n Flecha MenΓ©ndez of S21sec reported these vulnerabilities to CISA.
Dexma has not responded to CISAβs requests to coordinate at this time.
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:
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 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.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
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.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
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-2023-40153
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-41088
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-41089
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-42435
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-42666
cwe.mitre.org/data/definitions/200.html
cwe.mitre.org/data/definitions/287.html
cwe.mitre.org/data/definitions/319.html
cwe.mitre.org/data/definitions/352.html
cwe.mitre.org/data/definitions/79.html
github.com/cisagov/CSAF
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
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us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisa.gov/resources-tools/resources/ics-recommended-practices
www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
www.cisa.gov/topics/industrial-control-systems
www.cisa.gov/topics/industrial-control-systems
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
www.cisa.gov/uscert/ncas/tips/ST04-014
www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf
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