#VU56939 Permissions, Privileges, and Access Controls in Cybozu Remote Service


Published: 2021-09-30

Vulnerability identifier: #VU56939

Vulnerability risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20803

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cybozu Remote Service
Client/Desktop applications / Other client software

Vendor: Cybozu

Description

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

The vulnerability exists due to operation restriction bypass in the management screen. A remote authenticated attacker can alter the data of the management screen.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cybozu Remote Service: 3.1.8 - 3.1.9


External links
http://jvn.jp/en/jp/JVN52694228/index.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.


Latest bulletins with this vulnerability