#VU56361 Authorization bypass through user-controlled key in Nextcloud Richdocuments - CVE-2021-37628
Published: September 7, 2021
Vulnerability identifier: #VU56361
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-37628
CWE-ID:
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Nextcloud Richdocuments
Nextcloud Richdocuments
Software vendor:
Nextcloud
Nextcloud
Description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the File Drop features ("Upload Only" public link shares in Nextcloud) can be bypassed. A remote attacker can read arbitrary files in such a share.
Remediation
Install updates from vendor's website.