Information disclosure in Sylius

1) Information disclosure

EUVDB-ID: #VU24830

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-5220

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to ResourceBundle accepts and uses any serialisation groups to be passed via a HTTP header. A remote attacker can gain unauthorized access to sensitive information on the system by using an unintended serialisation group - for example it could make Shop API use a more permissive group from Admin API.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Sylius: 0.1.0 - 1.6.2

SyliusResourceBundle: 0.1.0 - 1.6.2

CPE2.3

• cpe:2.3:a:sylius:sylius:0.1.0:*:*:*:*:symfony:*:*
• cpe:2.3:a:sylius:sylius:0.2.0:*:*:*:*:symfony:*:*
• cpe:2.3:a:sylius:sylius:0.3.0:*:*:*:*:symfony:*:*
• cpe:2.3:a:sylius:syliusresourcebundle:0.1.0:*:*:*:*:sylius:*:*
• cpe:2.3:a:sylius:syliusresourcebundle:0.2.0:*:*:*:*:sylius:*:*
• cpe:2.3:a:sylius:syliusresourcebundle:0.3.0:*:*:*:*:sylius:*:*

External links

https://github.com/FriendsOfPHP/security-advisories/blob/master/sylius/resource-bundle/CVE-2020-5220.yaml
https://github.com/Sylius/SyliusResourceBundle/security/advisories/GHSA-8vp7-j5cj-vvm2

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.