Privilege escalation in SilverStripe GraphQL Server and SilverStripe recipe-cms

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU31781

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-6165

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the automatic permission checking mechanism does not provide complete protection against lists that are limited. A remote attacker can add records that should fail the permission check to the final result set.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SilverStripe recipe-cms: 4.5.0 - 4.5.2

SilverStripe GraphQL Server: 3.2.0 - 3.2.3

CPE2.3

• cpe:2.3:a:silverstripe:silverstripe_cms_recipe:4.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:silverstripe:silverstripe_cms_recipe:4.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:silverstripe:silverstripe_cms_recipe:4.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:silverstripe:silverstripe-graphql:3.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:silverstripe:silverstripe-graphql:3.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:silverstripe:silverstripe-graphql:3.2.2:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.