SB2020021212 - Multiple vulnerabilities in Siemens SCALANCE S-600

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Cross-site scripting (CVE-ID: CVE-2019-6585)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the integrated configuration web server. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

2) Resource exhaustion (CVE-ID: CVE-2019-13925)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled resource consumption. A remote attacker can send a specially crafted packets to Port 443/TCP, trigger resource exhaustion and perform a denial of service (DoS) attack.

3) Resource exhaustion (CVE-ID: CVE-2019-13926)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled resource consumption. A remote attacker can send a specially crafted packets to Port 443/TCP, trigger resource exhaustion and perform a denial of service (DoS) attack.

A cold reboot is required to restore the functionality of the device.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://ics-cert.us-cert.gov/advisories/icsa-20-042-10
• https://cert-portal.siemens.com/productcert/pdf/ssa-591405.pdf