Vulnerability Monitor

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CVE-2021-39223

Nextcloud is an open-source, self-hosted productivity platform. The Nextcloud Richdocuments application prior to versions 3.8.6 and 4.2.3 returned verbatim exception messages to the user. This could result in a full path disclosure on shared files. (e.g. an attacker could see that the file `shared.txt` is located within `/files/$username/Myfolder/Mysubfolder/shared.txt`). It is recommended that the Richdocuments application is upgraded to 3.8.6 or 4.2.3. As a workaround, disable the Richdocuments application in the app settings.

Published

2021-10-25T22:15:07.507

Last Modified

2024-11-21T06:18:56.700

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-200
Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	richdocuments	< 3.8.6	Yes
Application	nextcloud	richdocuments	< 4.2.3	Yes

References

https://github.com/nextcloud/richdocuments/pull/1760 Patch, Third Party Advisory ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93 Third Party Advisory ([email protected])
https://hackerone.com/reports/1253460 Permissions Required, Third Party Advisory ([email protected])
https://github.com/nextcloud/richdocuments/pull/1760 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-rjcc-4cgj-6v93 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/1253460 Permissions Required, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)