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VAR-201204-0133

Vulnerability from variot - Updated: 2023-12-18 12:22

The web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100 does not require authentication, which allows remote attackers to perform unspecified functions via unknown vectors. Koyo ECOM100 Ethernet is an Ethernet module. This module is used for communication between the PLC and the control system. There are several security vulnerabilities in Koyo ECOM100 Ethernet, including: (1) Using an 8-byte password weak authentication mechanism. (2) There is a replay attack. (3) The WEB server does not have any verification mechanism. (4) There is a buffer overflow in the WEB server. (5) There is a cross-site scripting attack on the WEB server. (6) The WEB server has a denial of service attack, which can consume a lot of resources. A buffer-overflow vulnerability. 2. A denial-of-service vulnerability. 3. Multiple security-bypass vulnerabilities. 4. A cross site-scripting vulnerability. Attackers can exploit these issues to execute arbitrary code in the context of the affected application, cause denial-of-service conditions, bypass some security restrictions, allow an attacker to steal cookie-based information, or execute script code in the context of the browser of an unsuspecting user; other attacks may also be possible. ----------------------------------------------------------------------

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TITLE: Koyo ECOM100 Ethernet Module Cross-Site Scripting and Denial of Service Vulnerabilities

SECUNIA ADVISORY ID: SA47735

VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/47735/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=47735

RELEASE DATE: 2012-01-23

DISCUSS ADVISORY: http://secunia.com/advisories/47735/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s)

http://secunia.com/advisories/47735/

ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=47735

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION: Multiple vulnerabilities have been reported in Koyo ECOM100 Ethernet Module, which can be exploited by malicious people to conduct cross-site scripting attacks and cause a DoS (Denial of Service).

1) Certain unspecified input is not properly sanitised before being returned to the user.

SOLUTION: Filter malicious characters and character sequences in a proxy. Restrict access to trusted hosts only.

PROVIDED AND/OR DISCOVERED BY: ICS-CERT credits Reid Wightman via Digital Bond\x92s SCADA Security Scientific Symposium (S4).

ORIGINAL ADVISORY: ICS-CERT: http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-12-020-05.pdf

OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

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EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities.

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VAR-201204-0131

Vulnerability from variot - Updated: 2023-12-18 12:22

Cross-site scripting (XSS) vulnerability in the web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. Koyo ECOM100 Ethernet is an Ethernet module. This module is used for communication between the PLC and the control system. There are several security vulnerabilities in Koyo ECOM100 Ethernet, including: (1) Using an 8-byte password weak authentication mechanism. (2) There is a replay attack. (3) The WEB server does not have any verification mechanism. (4) There is a buffer overflow in the WEB server. (6) The WEB server has a denial of service attack, which can consume a lot of resources. A buffer-overflow vulnerability. 2. A denial-of-service vulnerability. 3. Multiple security-bypass vulnerabilities. 4. A cross site-scripting vulnerability. Attackers can exploit these issues to execute arbitrary code in the context of the affected application, cause denial-of-service conditions, bypass some security restrictions, allow an attacker to steal cookie-based information, or execute script code in the context of the browser of an unsuspecting user; other attacks may also be possible. ----------------------------------------------------------------------