CVE-2021-23976
Firefox for Android UI Spoofing and Cross-Origin Attack Vulnerability
Description
When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could also lead to cross-origin attacks on targeted websites. Note: This issue is a different issue from CVE-2020-26954 and only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox < 86.
INFO
Published Date :
Feb. 26, 2021, 2:15 a.m.
Last Modified :
May 27, 2022, 6:17 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.8
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-2021-23976.
| URL | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1684627 | Issue Tracking Permissions Required Vendor Advisory |
| https://security.gentoo.org/glsa/202104-10 | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-07/ | Release Notes 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-2021-23976 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23976 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]
May. 27, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202104-10 No Types Assigned https://security.gentoo.org/glsa/202104-10 Third Party Advisory -
CVE Modified by [email protected]
May. 01, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202104-10 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 03, 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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1684627 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1684627 Issue Tracking, Permissions Required, Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-07/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes, Vendor Advisory Added CWE NIST CWE-1021 Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:* versions up to (excluding) 86.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23976 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-2021-23976
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.16 }} 0.02%
score
0.52611
percentile