CVE-2021-23985

MEDIUM Year: 2021
CVSS v3 Score
6.5
Medium
CVSS v2 Score
4.3
Medium
Weakness Type
NVD-CWE-Other
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Vulnerability Description

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.

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