Vulnerability Name:

CVE-2020-16020 (CCN-191837)

Assigned:2020-11-17
Published:2020-11-17
Updated:2021-01-12
Summary:Inappropriate implementation in cryptohome in Google Chrome on ChromeOS prior to 87.0.4280.66 allowed a remote attacker who had compromised the browser process to bypass discretionary access control via a malicious file.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/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): High
Integrity (I): High
Availibility (A): High
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:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
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-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-16020

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

Source: MISC
Type: Release Notes, Vendor Advisory
https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop_17.html

Source: MISC
Type: Permissions Required, Vendor Advisory
https://crbug.com/1139411

Source: XF
Type: UNKNOWN
google-chrome-cve202016020-sec-bypass(191837)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:google:chrome:*:*:*:*:*:*:*:* (Version < 87.0.4280.66)
  • AND
  • cpe:/o:google:chrome_os:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:202016020
    V
    		CVE-2020-16020
    2022-06-30
    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:64632
    P
    		Security update for python-Babel (Important)
    2021-12-06
    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:64520
    P
    		Security update for the Linux Kernel (Important)
    2021-06-08
    oval:org.opensuse.security:def:100269
    P
    		 (Moderate)
    2021-04-20
    oval:org.opensuse.security:def:100267
    P
    		 (Moderate)
    2021-04-13
    oval:org.opensuse.security:def:74698
    P
    		Security update for velocity (Important)
    2021-03-16
    oval:org.opensuse.security:def:93554
    P
    		 (Moderate)
    2020-12-10
    oval:org.opensuse.security:def:65104
    P
    		Security update for librsvg (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:75179
    P
    		Security update for chromium (Important)
    2020-12-01
    oval:org.opensuse.security:def:74572
    P
    		Security update for curl (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64992
    P
    		Security update for cairo (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:75046
    P
    		Security update for xorg-x11-server (Important)
    2020-12-01
    oval:org.opensuse.security:def:109742
    P
    		Security update for chromium (Important)
    2020-11-26
    oval:org.opensuse.security:def:96395
    P
    		Security update for chromium (Important)
    2020-11-26
    oval:org.opensuse.security:def:103085
    P
    		Security update for chromium (Important)
    2020-11-26
    oval:org.opensuse.security:def:93556
    P
    		Security update for chromium (Important)
    2020-11-26
    oval:org.opensuse.security:def:110322
    P
    		Security update for chromium (Important)
    2020-11-26
    oval:org.opensuse.security:def:103082
    P
    		Security update for chromium (Important)
    2020-11-25
    oval:org.opensuse.security:def:110874
    P
    		Security update for chromium (Important)
    2020-11-25
    oval:org.opensuse.security:def:109739
    P
    		Security update for chromium (Important)
    2020-11-25
    oval:org.opensuse.security:def:96392
    P
    		Security update for chromium (Important)
    2020-11-25
    BACK
    google chrome *
    google chrome os -