SB2021031507 - Multiple vulnerabilities in M-System DL8

Description

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion (CVE-ID: CVE-2021-20675)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 application does not properly control consumption of internal resources. A remote authenticated attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

2) Improper Access Control (CVE-ID: CVE-2021-20676)

CWE-ID: CWE-284 - Improper Access Control

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

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

The vulnerability exists due to improper access restrictions. A remote authenticated attacker can do prohibited operation.

Remediation

Install update from vendor's website.

References

• https://jvn.jp/en/jp/JVN47497535/index.html
• https://www.m-system.co.jp/download_w/dl_dl8updaterE.html