PT-2020-19241 · Mozilla+2 · Firefox+2

Matheus Vrech · Published 2020-03-10 · Updated 2024-12-12 · CVE-2020-6813

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 74

Description The issue allows an attacker to inject arbitrary styles into a CSS block by exploiting the @import statement, bypassing the intent of the Content Security Policy when protecting CSS blocks with the nonce feature.

Recommendations For versions prior to 74, update to version 74 or later to resolve the issue.

Exploit

Fix

Related Identifiers

ALT-PU-2020-1486

ALT-PU-2020-2408

ALT-PU-2020-2933

ALT-PU-2020-3442

ALT-PU-2021-1368

ALT-PU-2021-3368

CVE-2020-6813

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

SUSE-SU-2020:1899-1

USN-4299-1

Affected Products

Alt Linux

Firefox

Ubuntu

References · 1900

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/firefox_jit_use_after_free.rb · Exploit
• 🔥 https://github.com/maxpl0it/CVE-2019-17026-Exploit · Exploit
• 🔥 https://github.com/aleksejspopovs/cve-2020-16012 · Exploit
• 🔥 https://github.com/lsw29475/CVE-2019-17026 · Exploit
• 🔥 https://github.com/R0jhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/hasan-khalil/CVE-2020-6514 · Exploit
• 🔥 https://github.com/HassanAzze/CVE-2020-6514 · Exploit
• 🔥 https://github.com/rojhack/CVE-2020-6514 · Exploit
• 🔥❌ https://github.com/marcinguy/CVE-2020-15999 · Exploit, Deleted
• https://mozilla.org/security/advisories/mfsa2020-08 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-6806 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6813 · Security Note
• https://ubuntu.com/security/CVE-2020-6808 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-6807 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-6814 · Vendor Advisory