#VU56938 HTTP response splitting in Cybozu Remote Service


Published: 2021-09-30

Vulnerability identifier: #VU56938

Vulnerability risk: Low

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

CVE-ID: CVE-2021-20802

CWE-ID: CWE-113

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 perform HTTP splitting attacks.

The vulnerability exists due to software does not corrector process CRLF character sequences. A remote attacker can perform HTTP header injection attack on the system.

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 non-authenticated attacker 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