PT-2021-1582 · Google+3 · Google Chrome+3

Alesandro Ortiz · Published 2021-01-06 · Updated 2024-06-15 · CVE-2021-21111

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 87.0.4280.141

Description The issue is related to insufficient policy enforcement in the WebUI of Google Chrome, which could allow an attacker to perform a sandbox escape via a crafted Chrome Extension if a user is convinced to install a malicious extension. This could potentially impact the confidentiality, integrity, and availability of protected information.

Recommendations For versions prior to 87.0.4280.141, update to version 87.0.4280.141 or later to resolve the issue. As a temporary workaround, consider restricting the installation of extensions to only trusted sources until the update can be applied.

Exploit

Fix

Clickjacking

Weakness Enumeration

CWE-1021

Related Identifiers

ALT-PU-2021-1010

ALT-PU-2021-1049

ALT-PU-2021-1157

ALT-PU-2021-1210

ALT-PU-2021-1379

BDU:2021-00200

CVE-2021-21111

DSA-4832-1

OPENSUSE-SU-2021:0040-1

OPENSUSE-SU-2021:0041-1

OPENSUSE-SU-2021:0047-1

OPENSUSE-SU-2021:0048-1

OPENSUSE-SU-2021:0138-1

OPENSUSE-SU-2021:0139-1

OPENSUSE-SU-2021_0040-1

OPENSUSE-SU-2021_0041-1

OPENSUSE-SU-2021_0138-1

OPENSUSE-SU-2021_0139-1

OPENSUSE-SU-2024:10681-1

OPENSUSE-SU-2024:12948-1

Affected Products

Alt Linux

Astra Linux

Google Chrome

Suse

References · 2358

• 🔥 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/DSA-4832-1 · Vendor Advisory
• https://crbug.com/1149125 · Vendor Advisory
• https://debian.org/security/2021/dsa-4832 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21111 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0040-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21111 · Security Note