Vulnerability · Published Aug 26, 2021 · Assigned by GitHub_M

CVE-2021-29487Authentication bypass in Octobercms

High 7.4

In plain English

A high-severity improper authentication in october from octobercms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.9%top 40.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an attacker can exploit this vulnerability to bypass authentication and takeover of and user account on an October CMS server. The vulnerability is exploitable by unauthenticated users via a specially crafted request. This only affects frontend users and the attacker must obtain a Laravel secret key for cookie encryption and signing in order to exploit this vulnerability. The issue has been patched in Build 472 and v1.1.5.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagistoctober/system1.0.472GHSA-h76r-vgf3-j6w5
Packagistoctober/system1.1.5GHSA-h76r-vgf3-j6w5

Affected products (as reported)

VendorProductVersions
octobercms october >= 1.0.471, < 1.0.472>= 1.1.1, < 1.1.5

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References