CVE-2021-23984
"Firefox/Thunderbird Pop-up Spoofing Vulnerability"
Description
A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
INFO
Published Date :
March 31, 2021, 2:15 p.m.
Last Modified :
Aug. 6, 2021, 6:18 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-23984 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-23984
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.
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-2021-23984.
| URL | Resource |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 | Issue Tracking Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-10/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-11/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2021-12/ | 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).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-23984 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23984 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]
Aug. 06, 2021
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 24, 2021
Action Type Old Value New Value Changed Description A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Thunderbird < 78.9, and Firefox < 87. A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9. Removed Reference https://security.gentoo.org/glsa/202104-09 [Third Party Advisory] Removed Reference https://security.gentoo.org/glsa/202104-10 [Third Party Advisory] -
Modified Analysis by [email protected]
Jun. 04, 2021
Action Type Old Value New Value Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 Issue Tracking, Vendor Advisory Changed Reference Type https://security.gentoo.org/glsa/202104-09 No Types Assigned https://security.gentoo.org/glsa/202104-09 Third Party Advisory 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/202104-09 [No Types Assigned] Added Reference https://security.gentoo.org/glsa/202104-10 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 05, 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:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1693664 Issue Tracking Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-10/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-10/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-11/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-11/ Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2021-12/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2021-12/ Vendor Advisory Added CWE NIST CWE-290 Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* versions up to (excluding) 87.0 *cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* versions up to (excluding) 78.9 *cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* versions up to (excluding) 78.9
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23984 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-2021-23984
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.02%
score
0.46724
percentile