Vulnerability Report

CVE-2023-28645

Title: Nextcloud Richdocuments

Other

Proof Of Concept

No public PoC currently indexed for CVE-2023-28645.

CWE Category CWE-284
Published Date Mar 31, 2023
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.7 CVSS v3.1
Exploit Probability (EPSS)
0.74%

Vulnerability Summary

CVE-2023-28645: Nextcloud richdocuments is a Nextcloud app integrating the office suit Collabora Online. In affected versions the secure view feature of the rich documents app can be bypassed by using unprotected internal API endpoint of the rich documents app. It is recommended that the Nextcloud Office app (richdocuments) is upgraded to 8.0.0-beta.1, 7.0.2 or 6.3.2. Users unable to upgrade may mitigate the issue by taking steps to restrict the ability to download documents. This includes ensuring that the `WOPI configuration` is configured to only serve documents between Nextcloud and Collabora. It is highly recommended to define the list of Collabora server IPs as the allow list within the Office admin settings of Nextcloud.

Impacted Vendors

N
nextcloud 1

Reference Links

https://docs.nextcloud.com/server/latest/admin_manual/office/configuration.html#wopi-settings https://github.com/nextcloud/richdocuments/pull/2604 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-95j6-p5cj-5hh5 https://docs.nextcloud.com/server/latest/admin_manual/office/configuration.html#wopi-settings https://github.com/nextcloud/richdocuments/pull/2604 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-95j6-p5cj-5hh5
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.7
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-28645 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Affected Stack

No specific products linked.