HTTP response splitting in Cybozu Remote Service - CVE-2021-20802
Published: September 30, 2021
Vulnerability identifier: #VU56938
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-20802
CWE-ID: CWE-113
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Cybozu Remote Service
How to mitigate CVE-2021-20802
Install updates from vendor's website.
Cybozu Remote Service - update to 4.0.0