CVE-2017-0883
Nextcloud Server Permission Increase via OCS API
Description
Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. 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. 9, 2019, 11:21 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
3.1
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-2017-0883.
| URL | Resource |
|---|---|
| https://hackerone.com/reports/169680 | Third Party Advisory |
| https://nextcloud.com/security/advisory/?id=nc-sa-2017-001 | 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-2017-0883 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-0883 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 -
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 -
Reanalysis by [email protected]
Dec. 18, 2018
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (including) 9.0.54 *cpe:2.3:a:nextcloud:nextcloud:10.0.2:*:*:*:*:*:*:* OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions up to (including) 9.0.54 *cpe:2.3:a:nextcloud:nextcloud_server:10.0.2:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Apr. 10, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:S/C:P/I:P/A:N) Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Changed Reference Type https://nextcloud.com/security/advisory/?id=nc-sa-2017-001 No Types Assigned https://nextcloud.com/security/advisory/?id=nc-sa-2017-001 Patch, Vendor Advisory Changed Reference Type https://hackerone.com/reports/169680 No Types Assigned https://hackerone.com/reports/169680 Third Party 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)
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-0883 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-0883
weaknesses.
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
0.19587
percentile