Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-3311 |
CWE-ID | CWE-384 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
October CMS Web applications / CMS |
Vendor | OctoberCMS |
Security Bulletin
This security bulletin contains information about 1 vulnerabilities.
Updated 08.03.2021
Added fixed version.
EUVDB-ID: #VU50409
Risk: Medium
CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-3311
CWE-ID:
CWE-384 - Session Fixation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to impersonate CMS users.
The vulnerability exists due to October CMS does not invalidate old session identifiers after user logout. A remote attacker with knowledge of any previous session identifier can reuse it by bypass authentication processed and gain unauthorized access to the application.
Install update from vendor's website.
Vulnerable software versionsOctober CMS: 1.0.319 - 1.1.1
CPE2.3https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024
https://github.com/octobercms/october/security/advisories/GHSA-7ggw-h8pp-r95r
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.