PT-2021-2057 · Google+3 · Google Chrome+3

Maciej Pulikowski · Published 2021-01-19 · Updated 2024-06-15 · CVE-2021-21129

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Google Chrome versions prior to 88.0.4324.96

Description: The issue is related to insufficient policy enforcement in the File System API, allowing a remote attacker to bypass filesystem restrictions. This can be achieved via a crafted HTML page. The vulnerability is associated with weaknesses in the authentication procedure.

Recommendations: For versions prior to 88.0.4324.96, update to version 88.0.4324.96 or later to resolve the issue. As a temporary workaround, consider restricting access to the File System API until a patch is applied. Avoid using the File System API in affected versions to minimize the risk of exploitation.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

ALT-PU-2021-1146

ALT-PU-2021-1179

ALT-PU-2021-1198

ALT-PU-2021-1210

ALT-PU-2021-1379

BDU:2021-00904

CVE-2021-21129

DSA-4846-1

MGASA-2021-0406

OPENSUSE-SU-2021:0166-1

OPENSUSE-SU-2021:0173-1

OPENSUSE-SU-2021:0177-1

OPENSUSE-SU-2021:0186-1

OPENSUSE-SU-2021:0973-1

OPENSUSE-SU-2021:1016-1

OPENSUSE-SU-2021_0166-1

OPENSUSE-SU-2021_0173-1

OPENSUSE-SU-2021_0973-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:10977-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2363

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_simplifiedlowering_overflow.rb · Exploit
• 🔥 https://github.com/Puliczek/CVE-2021-21123-PoC-Google-Chrome · Exploit
• 🔥 https://github.com/PerimeterX/CVE-2020-6519 · Exploit
• 🔥 https://github.com/aleksejspopovs/cve-2020-16012 · 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://osv.dev/vulnerability/openSUSE-SU-2021:1016-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-21129 · Security Note
• https://bdu.fstec.ru/vul/2021-00904 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2021:0166-1 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-21129 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10681-1 · Vendor Advisory