7.5 - CVE-2021-37628

Executive Summary

Informations
Name	CVE-2021-37628	First vendor Publication	2021-09-07
Vendor	Cve	Last vendor Modification	2021-09-14

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Overall CVSS Score	7.5
Base Score	7.5	Environmental Score	7.5
impact SubScore	3.6	Temporal Score	7.5
Exploitabality Sub Score	3.9

Attack Vector	Network	Attack Complexity	Low
Privileges Required	None	User Interaction	None
Scope	Unchanged	Confidentiality Impact	High
Integrity Impact	None	Availability Impact	None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Cvss Base Score	5	Attack Range	Network
Cvss Impact Score	2.9	Attack Complexity	Low
Cvss Expoit Score	10	Authentication	None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Nextcloud Richdocuments is an open source collaborative office suite. In affected versions the File Drop features ("Upload Only" public link shares in Nextcloud) can be bypassed using the Nextcloud Richdocuments app. An attacker was able to read arbitrary files in such a share. It is recommended that the Nextcloud Richdocuments is upgraded to 3.8.4 or 4.2.1. If upgrading is not possible then it is recommended to disable the Richdocuments application.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37628

CWE : Common Weakness Enumeration

%	Id	Name
100 %	CWE-639	Access Control Bypass Through User-Controlled Key

CPE : Common Platform Enumeration

Type	Description	Count
Application	Nextcloud Richdocuments cpe:2.3:a:nextcloud:richdocuments::::::::	1

Sources (Detail)

Source	Url
CONFIRM	https://github.com/nextcloud/security-advisories/security/advisories/GHSA-pxh...
MISC	https://github.com/nextcloud/richdocuments/pull/1664 https://hackerone.com/reports/1253403