#VU31781 Permissions, Privileges, and Access Controls in SilverStripe recipe-cms and SilverStripe GraphQL Server - CVE-2020-6165

Vulnerability identifier: #VU31781

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SilverStripe recipe-cms
Web applications / Modules and components for CMS
SilverStripe GraphQL Server
Server applications / Other server solutions

Vendor: SilverStripe

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

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

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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.