PT-2021-2597 · Mozilla+4 · Firefox+4

Paul Zühlcke · Published 2021-01-26 · Updated 2024-12-12 · CVE-2021-23963

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 85

Description The issue is related to errors in handling permissions for the WebRTC extension in Mozilla Firefox. It may allow a remote attacker to impact data integrity. When sharing geolocation during an active WebRTC share, Firefox could reset the webRTC sharing state in the user interface, leading to loss of control over the currently granted permission.

Recommendations For versions prior to 85, update to version 85 or later to resolve the issue. As a temporary workaround, consider avoiding the use of geolocation sharing during active WebRTC shares until the update is applied. Restrict access to WebRTC functionality to minimize the risk of exploitation.

Exploit

Fix

Improper Preservation of Permissions

Weakness Enumeration

CWE-281

Related Identifiers

ALT-PU-2021-1162

ALT-PU-2021-2725

ALT-PU-2021-2881

ALT-PU-2021-3368

ALT-PU-2021-3369

ALT-PU-2022-1781

ALT-PU-2022-1782

BDU:2021-02080

CVE-2021-23963

OESA-2023-1673

OESA-2023-1674

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

USN-4717-1

USN-4717-2

Affected Products

Alt Linux

Astra Linux

Linuxmint

Firefox

Ubuntu

References · 2195

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/firefox_jit_use_after_free.rb · Exploit
• 🔥 https://github.com/mistymntncop/CVE-2022-26485 · Exploit
• 🔥 https://github.com/aleksejspopovs/cve-2020-16012 · Exploit
• 🔥 https://github.com/R0jhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/HassanAzze/CVE-2020-6514 · Exploit
• 🔥 https://github.com/rojhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/hasan-khalil/CVE-2020-6514 · Exploit
• 🔥❌ https://github.com/marcinguy/CVE-2020-15999 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2022-1529 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-25730 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-23603 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-28162 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-38477 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-26978 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-22757 · Security Note