CVE Vulnerability

CVE-2021-3311

An issue was discovered in October through build 471. It reactivates an old session ID (which had been invalid after a logout) once a new login occurs. NOTE: this violates the intended Auth/Manager.php authentication behavior but, admittedly, is only relevant if an old session ID is known to an attacker.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://octobercms.com/forum/chan/announcements Vendor Advisory
https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024 Patch Third Party Advisory
https://anisiosantos.me/october-cms-token-reactivation Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*
Information

Published : 2021-02-05 02:15

Updated : 2021-03-15 05:34

NVD link : CVE-2021-3311

Mitre link : CVE-2021-3311

Products Affected
No products.
CWE
CWE-613