GHSA-7ggw-h8pp-r95r
October CMS Session ID not invalidated after logout
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | october/rain | < 1.0.472 | 1.0.472 |
| Packagist | october/rain | >= 1.1.0, < 1.1.2 | 1.1.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
When logging out, the session ID was not invalidated. This is not a problem while the user is logged out, but as soon as the user logs back in the old session ID would be valid again; which means that anyone that gained access to the old session cookie would be able to act as the logged in user. This is not a major concern for the majority of cases, since it requires a malicious party gaining access to the session cookie in the first place, but nevertheless has been fixed.
### Patches
Issue has been patched in Build 472 (v1.0.472) and v1.1.2.
### Workarounds
Apply https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024 to your installation manually if unable to upgrade to Build 472 or v1.1.2.
### References
- Reported by Anisio (Brazilian Information Security Analyst)
- http://cve.circl.lu/cve/CVE-2021-3311
### For more information
If you have any questions or comments about this advisory:
* Email us at [[email protected]](mailto:[email protected])
### Threat assessment:
<img width="699" alt="Screen Shot 2021-02-07 at 11 50 35 PM" src="https://user-images.githubusercontent.com/7253840/107180881-51eaf000-699f-11eb-8828-333128faf2a6.png">
References
External links from the advisory. They lead to third-party sites.
- https://github.com/octobercms/october/security/advisories/GHSA-7ggw-h8pp-r95r
- https://nvd.nist.gov/vuln/detail/CVE-2021-3311
- https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024
- https://anisiosantos.me/october-cms-token-reactivation
- https://octobercms.com/forum/chan/announcements
- https://packagist.org/packages/october/rain
- http://cve.circl.lu/cve/CVE-2021-3311