SB2023030104 - Multiple vulnerabilities in SS1 and Rakuraku PC Cloud

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2023-22335)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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. A remote attacker can bypass implemented security restrictions and download arbitrary files of the directory where the product runs.

2) Path traversal (CVE-ID: CVE-2023-22336)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and upload arbitrary files on the system.

3) Use of hard-coded credentials (CVE-ID: CVE-2023-22344)

CWE-ID: CWE-798 - Use of Hard-coded Credentials

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:Green

The vulnerability allows a remote attacker to compromise the target sytem.

The vulnerability exists due to presence of hard-coded credentials in application code. A remote unauthenticated attacker can obtain the password of the debug tool and execute it.

Remediation

Install update from vendor's website.

References

• https://jvn.jp/en/jp/JVN57224029/index.html
• https://www.dos-osaka.co.jp/news/2023/03/230301.html