4.3
MEDIUM
CVE-2017-0884
Nextcloud Server Folder Creation Privilege Escalation Vulnerability
Description

Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue. Due to a logical error in the file caching layer an authenticated adversary is able to create empty folders inside a shared folder. Note that this only affects folders and files that the adversary has at least read-only permissions for.

INFO

Published Date :

April 5, 2017, 8:59 p.m.

Last Modified :

Oct. 4, 2022, 2:05 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2017-0884 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Nextcloud nextcloud_server
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-0884.

URL Resource
https://hackerone.com/reports/169680 Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2017-002 Broken Link Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-0884 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-0884 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Oct. 04, 2022

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://nextcloud.com/security/advisory/?id=nc-sa-2017-002 Patch, Vendor Advisory https://nextcloud.com/security/advisory/?id=nc-sa-2017-002 Broken Link, Patch, Vendor Advisory
    Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (including) 9.0.54 *cpe:2.3:a:nextcloud:nextcloud_server:10.0.2:*:*:*:*:*:*:* OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions up to (excluding) 9.0.55 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (excluding) 10.0.2
  • CPE Deprecation Remap by [email protected]

    Sep. 27, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:10.0.2:*:*:*:*:*:*:* OR *cpe:2.3:a:nextcloud:nextcloud_server:10.0.2:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE HackerOne CWE-275
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-275 CWE-732
  • Initial Analysis by [email protected]

    Apr. 10, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://hackerone.com/reports/169680 No Types Assigned https://hackerone.com/reports/169680 Third Party Advisory
    Changed Reference Type https://nextcloud.com/security/advisory/?id=nc-sa-2017-002 No Types Assigned https://nextcloud.com/security/advisory/?id=nc-sa-2017-002 Patch, Vendor Advisory
    Added CWE CWE-275
    Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:10.0.2:*:*:*:*:*:*:* *cpe:2.3:a:nextcloud:nextcloud:9.0.54:*:*:*:*:*:*:* (and previous)
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} 0.00%

score

0.14275

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability