SB2022112812 - Multiple vulnerabilities in Moxa Secure Router EDR and TN Series

Description

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: N/A)

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

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 escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions. A remote attacker can edit the cookie’s values and cause security restrictions bypass and privilege escalation.

2) Input validation error (CVE-ID: N/A)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/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 a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP/HTTPS request and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://www.moxa.com/en/support/product-support/security-advisory/tn-5916-series-privilege-escalation-vulnerability
• https://www.moxa.com/en/support/product-support/security-advisory/secure-router-edr-and-tn-series-improper-input-validation-vulnerabilities