5.3
MEDIUM
CVE-2021-41166
Nextcloud Android Image Thumbnail Information Disclosure Vulnerability
Description

The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions prior to 3.17.1 may lead to sensitive information disclosure. An unauthorized app that does not have the otherwise required `MANAGE_DOCUMENTS` permission may view image thumbnails for images it does not have permission to view. Version 3.17.1 contains a patch. There are no known workarounds.

INFO

Published Date :

Jan. 26, 2022, 11:15 p.m.

Last Modified :

Feb. 2, 2022, 7:29 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-41166 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
2 Nextcloud nextcloud
3 Nextcloud notes
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-2021-41166.

URL Resource
https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086 Patch Third Party Advisory
https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c Patch Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4 Patch Third Party Advisory
https://hackerone.com/reports/1358597 Permissions Required

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-2021-41166 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-41166 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
  • Initial Analysis by [email protected]

    Feb. 02, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    Changed Reference Type https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086 No Types Assigned https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086 Patch, Third Party Advisory
    Changed Reference Type https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c No Types Assigned https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c Patch, Third Party Advisory
    Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4 Patch, Third Party Advisory
    Changed Reference Type https://hackerone.com/reports/1358597 No Types Assigned https://hackerone.com/reports/1358597 Permissions Required
    Added CWE NIST CWE-276
    Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:android:*:* versions up to (excluding) 3.17.1
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-2021-41166 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-2021-41166 weaknesses.

Exploit Prediction

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

0.12 }} 0.01%

score

0.46525

percentile

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