Vulnerability · Published Feb 5, 2021 · Assigned by mitre
CVE-2021-3311
Critical 9.8
In plain English
A critical-severity security flaw in the october/rain package (Packagist). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.9% (higher than 87% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.9%top 12.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | october/rain | 1.0.472 | GHSA-7ggw-h8pp-r95r |
| Packagist | october/rain | 1.1.2 | GHSA-7ggw-h8pp-r95r |
Affected products (as reported)
References
- https://octobercms.com/forum/chan/announcements x_refsource_MISC
- https://github.com/octobercms/library/commit/642f597489e6f644d4bd9a0c267e864cabead024 x_refsource_CONFIRM
- https://anisiosantos.me/october-cms-token-reactivation x_refsource_MISC