Vulnerability Name:

CVE-2021-21228 (CCN-200839)

Assigned:2020-12-21
Published:2021-04-26
Updated:2021-06-01
Summary:Insufficient policy enforcement in extensions in Google Chrome prior to 90.0.4430.93 allowed an attacker who convinced a user to install a malicious extension to bypass navigation restrictions via a crafted Chrome Extension.
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-863
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2021-21228

Source: CCN
Type: Google Chrome Releases Web site
Stable Channel Update for Desktop

Source: MISC
Type: Release Notes, Vendor Advisory
https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_26.html

Source: MISC
Type: Broken Link, Vendor Advisory
https://crbug.com/1139156

Source: XF
Type: UNKNOWN
google-chrome-cve202121228-sec-bypass(200839)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-ff893e12c5

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-35d2bb4627

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-c3754414e7

Source: GENTOO
Type: Third Party Advisory
GLSA-202104-08

Source: DEBIAN
Type: Third Party Advisory
DSA-4911

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-21228

Vulnerable Configuration:Configuration 1:
  • cpe:/a:google:chrome:*:*:*:*:*:*:*:* (Version < 90.0.4430.93)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:112066
    P
    		chromedriver-93.0.4577.82-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105615
    P
    		chromedriver-93.0.4577.82-1.1 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:111384
    P
    		Security update for opera (Important)
    2021-05-15
    oval:org.opensuse.security:def:111348
    P
    		Security update for Chromium (Critical)
    2021-04-30
    BACK
    google chrome *
    debian debian linux 10.0
    fedoraproject fedora 32
    fedoraproject fedora 33
    fedoraproject fedora 34