CVE-2021-41256
Nextcloud News Android Unintended Intent Reflection Remote Code Execution
Description
nextcloud news-android is an Android client for the Nextcloud news/feed reader app. In affected versions the Nextcloud News for Android app has a security issue by which a malicious application installed on the same device can send it an arbitrary Intent that gets reflected back, unintentionally giving read and write access to non-exported Content Providers in Nextcloud News for Android. Users should upgrade to version 0.9.9.63 or higher as soon as possible.
INFO
Published Date :
Nov. 30, 2021, 9:15 p.m.
Last Modified :
Dec. 2, 2021, 6:33 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.8
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-2021-41256.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.md | Exploit Third Party Advisory |
| https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85 | Patch Third Party Advisory |
| https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3 | Patch Third Party 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-2021-41256 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41256 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]
Dec. 02, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.md No Types Assigned https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.md Exploit, Third Party Advisory Changed Reference Type https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85 No Types Assigned https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85 Patch, Third Party Advisory Changed Reference Type https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3 No Types Assigned https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3 Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:nextcloud:news:*:*:*:*:*:android:*:* versions up to (excluding) 0.9.9.63
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41256 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-2021-41256
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.01%
score
0.45497
percentile