SB2023102709 - Multiple vulnerabilities in Sielco Radio Link and Analog FM Transmitters

Description

This security bulletin contains information about 4 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2023-42769)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can perform a brute-force attack to obtain a valid session, bypass authentication and manipulate the transmitter.

2) Cross-site request forgery (CVE-ID: CVE-2023-45317)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

3) Improper access control (CVE-ID: CVE-2023-45228)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions when editing users. A remote user can send a single HTTP POST request with modified parameters and  manipulate users, passwords and permissions.

4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-41966)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions. A remote user can send a HTTP POST to set a parameter and gain elevated privileges.

Remediation

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

References

• https://www.sielco.org/en/contacts
• https://www.cisa.gov/news-events/ics-advisories/icsa-23-299-08