Vulnerability CVE-2020-13677

Vulnerability Name:

CVE-2020-13677 (CCN-209482)

Assigned:

2020-05-28

Published:

2021-09-15

Updated:

2022-07-08

Summary:

Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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): None
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:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:C/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): Complete Availibility (A): None

Vulnerability Type:

CWE-Other

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2020-13677

Source: XF
Type: UNKNOWN
drupal-core-cve202013677-sec-bypass(209482)

Source: CCN
Type: SA-CORE-2021-010
Drupal core - Moderately critical - Access Bypass

Source: CONFIRM
Type: Patch, Vendor Advisory
https://www.drupal.org/sa-core-2021-010

Vulnerable Configuration:

Configuration 1:

cpe:/a:drupal:drupal:*:*:*:*:*:*:*:* (Version >= 9.2.0 and < 9.2.6)

OR cpe:/a:drupal:drupal:*:*:*:*:*:*:*:* (Version >= 9.1.0 and < 9.1.13)

OR cpe:/a:drupal:drupal:*:*:*:*:*:*:*:* (Version < 8.9.19)

Denotes that component is vulnerable

BACK