Multiple vulnerabilities in Cybozu Garoon

Published: 2023-05-15

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-26595 CVE-2023-27304
CWE-ID	CWE-400 CWE-285
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Cybozu Garoon Web applications / Other software
Vendor	Cybozu

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU76125

Risk: Medium

CVSSv3.1: 4.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-26595

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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 in Message. A remote user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cybozu Garoon: 4.10.1 - 5.9.1

External links

http://jvn.jp/en/jp/JVN41694426/index.html
http://cs.cybozu.co.jp/2023/007698.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper Authorization

EUVDB-ID: #VU76126

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-27304

CWE-ID: CWE-285 - Improper Authorization