VDB
CVE-2021-23985
CVE-2021-23985
PUBLISHED
CVSS 6.5 MEDIUM
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.
EPSS 1.40% · 70.1th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score
1.40%
70.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | firefox | 60.0+build2-0ubuntu0.16.04.1, 0, 41.0.2+build2-0ubuntu1 |
| Ubuntu:18.04:LTS | mozjs38 | *, *, 0 |
| Ubuntu:18.04:LTS | mozjs52 | 52.9.1-0ubuntu0.18.04.1, 0, 52.3.1-0ubuntu3 |
| Ubuntu:22.04:LTS | mozjs78 | 78.15.0-2, 78.15.0-4ubuntu1, 78.13.0-1 |
| Ubuntu:20.04:LTS | firefox | 0, *, 80.0.1+build1-0ubuntu0.20.04.1 |
| Ubuntu:20.04:LTS | mozjs52 | 52.9.1-1build1, 52.9.1-1ubuntu3, 0 |
| Ubuntu:18.04:LTS | firefox | 66.0.2+build1-0ubuntu0.18.04.1, 66.0.3+build1-0ubuntu0.18.04.1, 66.0.4+build3-0ubuntu0.18.04.1 |
| Ubuntu:20.04:LTS | mozjs68 | 68.6.0-1, 68.6.0-1ubuntu1, * |
Timeline
- Mar 24, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 6, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 4, 2022 EPSS Score
- Nov 7, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-23985 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-10/#CVE-2021-23985 third-party-advisory
- https://ubuntu.com/security/notices/USN-4893-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-23985 third-party-advisory