CRLF injection in Nextcloud Server - CVE-2022-31014
Published: July 18, 2022
Vulnerability identifier: #VU65375
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-31014
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Nextcloud
Affected software:
Nextcloud Server
Nextcloud Server
Detailed vulnerability description
The vulnerability allows a remote attacker to inject arbitrary data in server response.
The vulnerability exists due to insufficient validation of attacker-supplied data in iCalendar Attachments to emails via newlines. A remote user can pass specially crafted data to the application containing CR-LF characters and modify application behavior.
How to mitigate CVE-2022-31014
Install updates from vendor's website.