SB2018121904 - Multiple vulnerabilities in CODESYS Control Products

Description

This security bulletin contains information about 3 vulnerabilities.

1) Use of insufficiently random values (CVE-ID: CVE-2018-20025)

CWE-ID: CWE-330 - Use of Insufficiently Random Values

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

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to weak random values. A remote unauthenticated attacker can bypass security restrictions to affect the confidentiality and integrity of data stored on the device.

2) Spoofing attack (CVE-ID: CVE-2018-20026)

CWE-ID: CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints

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

The vulnerability allows a remote attacker to conduct spoofing attack on the target system.

The vulnerability exists due to the application does not properly restrict communication channels. A remote unauthenticated attacker can spoof the source of communication packets.

3) Improper access control (CVE-ID: CVE-2018-10612)

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:Clear

The vulnerability allows a remote attacker to bypass security restrictions the target system.

The vulnerability exists due to user access management and communication encryption is not enabled by default. A remote unauthenticated attacker can gain access to the device and sensitive information, including user credentials.

Remediation

Install update from vendor's website.

References

• https://www.codesys.com/security/security-reports.html