SB2019080201 - Multiple vulnerabilities in 3S-Smart Software Solutions GmbH CODESYS V3 solutions

Description

This security bulletin contains information about 2 vulnerabilities.

1) Insufficient verification of data authenticity (CVE-ID: CVE-2019-9010)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

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

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists within the CmpGateway component that fails to properly verify ownership of the communication channel. A remote attacker can perform man-in-the-middle attack and impersonate the communication party.

2) Memory leak (CVE-ID: CVE-2019-9012)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

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

The vulnerability allows a remote attacker to perform DoS attack.

The vulnerability exists due memory leak within the CmpGateway component when processing network traffic. A remote attacker can send specially crafted packets to the affected application and perform denial of service attack.

Remediation

Install update from vendor's website.

References

• https://ics-cert.us-cert.gov/advisories/icsa-19-213-03
• https://www.codesys.com/fileadmin/data/customers/security/2019/Advisory2019-02_CDS-65123.pdf
• https://www.codesys.com/fileadmin/data/customers/security/2019/Advisory2019-03_CDS-64208.pdf