5.7
MEDIUM
CVE-2017-0936
Nextcloud Server Authorization Bypass Through User-Controlled Key
Description

Nextcloud Server before 11.0.7 and 12.0.5 suffers from an Authorization Bypass Through User-Controlled Key vulnerability. A missing ownership check allowed logged-in users to change the scope of app passwords of other users. Note that the app passwords themselves where neither disclosed nor could the error be misused to identify as another user.

INFO

Published Date :

March 28, 2018, 8:29 p.m.

Last Modified :

Oct. 9, 2019, 11:21 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.1
Affected Products

The following products are affected by CVE-2017-0936 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-2017-0936.

URL Resource
https://hackerone.com/reports/297751 Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2018-001 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-2017-0936 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-0936 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-639
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-275 CWE-255 CWE-200 CWE-639
  • Initial Analysis by [email protected]

    Apr. 27, 2018

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:M/Au:S/C:N/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://nextcloud.com/security/advisory/?id=nc-sa-2018-001 No Types Assigned https://nextcloud.com/security/advisory/?id=nc-sa-2018-001 Vendor Advisory
    Changed Reference Type https://hackerone.com/reports/297751 No Types Assigned https://hackerone.com/reports/297751 Third Party Advisory
    Added CWE CWE-275
    Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions up to (excluding) 11.0.7 *cpe:2.3:a:nextcloud:nextcloud_server:12.0.5:*:*:*:*:*:*:*
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-0936 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-2017-0936 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

0.20649

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability