Remote code execution in October CMS

1) Code Injection

EUVDB-ID: #VU48707

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-15247

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. A remote user with the cms.manage_pages, cms.manage_layouts, or cms.manage_partials permissions can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

October CMS: 1.0.319 - 1.0.468

CPE2.3

• cpe:2.3:a:octobercms:october:1.0.468:*:*:*:*:*:*:*

External links

https://github.com/octobercms/october/commit/4c650bb775ab849e48202a4923bac93bd74f9982
https://github.com/octobercms/october/security/advisories/GHSA-94vp-rmqv-5875

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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