CVE-2020-6165 Information

Description

SilverStripe 4.5.0 allows attackers to read certain records that should not have been placed into a result set. This affects silverstripe/recipe-cms. The automatic permission-checking mechanism in the silverstripe/graphql module does not provide complete protection against lists that are limited (e.g. through pagination) resulting in records that should have failed a permission check being added to the final result set. GraphQL endpoints are configured by default (e.g. for assets) but the admin/graphql endpoint is access protected by default. This limits the vulnerability to all authenticated users including those with limited permissions (e.g. where viewing records exposed through admin/graphql requires administrator permissions). However if custom GraphQL endpoints have been configured for a specific implementation (usually under /graphql) this vulnerability could also be exploited through unauthenticated requests. This vulnerability only applies to reading records; it does not allow unauthorised changing of records.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Reference

https://www.silverstripe.org/download/security-releases/CVE-2020-6165

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3