SB2020113008 - Multiple vulnerabilities in October CMS

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-15248)

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

The vulnerability exists due to application does not properly impose security restrictions. A remote user with "Publisher" access can escalate their permission to "Developer" access. 

2) Code Injection (CVE-ID: CVE-2020-26231)

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.

Remediation

Install update from vendor's website.

References

• https://github.com/octobercms/october/commit/78a37298a4ed4602b383522344a31e311402d829
• https://github.com/octobercms/october/security/advisories/GHSA-rfjc-xrmf-5vvw
• https://github.com/octobercms/october/commit/d34fb8ab51108495a9a651b841202d935f4e12f7
• https://github.com/octobercms/october/security/advisories/GHSA-r89v-cgv7-3jhx