// For flags

CVE-2021-23985

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

If an attacker is able to alter specific about:config values (for example malware running on the user's computer), the Devtools remote debugging feature could have been enabled in a way that was unnoticable to the user. This would have allowed a remote attacker (able to make a direct network connection to the victim) to monitor the user's browsing activity and (plaintext) network traffic. This was addressed by providing a visual cue when Devtools has an open network socket. This vulnerability affects Firefox < 87.

Si un atacante puede ser capaz de alterar valores específicos de about:config (por ejemplo, malware que se ejecuta en la computadora del usuario), la funcionalidad de depuración remota de Devtools podría haber sido habilitada de una manera que el usuario no pudo notar.&#xa0;Esto habría permitido a un atacante remoto (capaz de establecer una conexión de red directa con la víctima) monitorear la actividad de navegación del usuario y el tráfico de la red (texto plano).&#xa0;Esto se solucionó al proporcionar una pista visual cuando Devtools presenta un conector de red abierto.&#xa0;Esta vulnerabilidad afecta a Firefox versiones anteriores a 87.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-13 CVE Reserved
  • 2021-03-26 CVE Published
  • 2024-04-03 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
Firefox
Search vendor "Mozilla" for product "Firefox"
< 87.0
Search vendor "Mozilla" for product "Firefox" and version " < 87.0"
-
Affected