Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-21264 | First vendor Publication | 2021-05-03 |
| Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L | |||
|---|---|---|---|
| Overall CVSS Score | 5.2 | ||
| Base Score | 5.2 | Environmental Score | 5.2 |
| impact SubScore | 3.7 | Temporal Score | 5.2 |
| Exploitabality Sub Score | 1.1 | ||
| Attack Vector | Local | Attack Complexity | Low |
| Privileges Required | High | User Interaction | Required |
| Scope | Changed | Confidentiality Impact | Low |
| Integrity Impact | Low | Availability Impact | Low |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 4.4 | Attack Range | Local |
| Cvss Impact Score | 6.4 | Attack Complexity | Medium |
| Cvss Expoit Score | 3.4 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. A bypass of CVE-2020-26231 (fixed in 1.0.470/471 and 1.1.1) was discovered that has the same impact as CVE-2020-26231 & CVE-2020-15247. An authenticated backend user with the `cms.manage_pages`, `cms.manage_layouts`, or `cms.manage_partials` permissions who would **normally** not be permitted to provide PHP code to be executed by the CMS due to `cms.enableSafeMode` being enabled is able to write specific Twig code to escape the Twig sandbox and execute arbitrary PHP. This is not a problem for anyone that trusts their users with those permissions to normally write & manage PHP within the CMS by not having `cms.enableSafeMode` enabled, but would be a problem for anyone relying on `cms.enableSafeMode` to ensure that users with those permissions in production do not have access to write & execute arbitrary PHP. Issue has been patched in Build 472 (v1.0.472) and v1.1.2. As a workaround, apply https://github.com/octobercms/october/commit/f63519ff1e8d375df30deba63156a2fc97aa9ee7 to your installation manually if unable to upgrade to Build 472 or v1.1.2. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21264 |
CPE : Common Platform Enumeration
Sources (Detail)
| Source | Url |
|---|
Alert History
| Date | Informations |
|---|---|
| 2025-02-19 02:27:44 |
|
| 2024-11-28 13:51:57 |
|
| 2022-10-20 00:27:34 |
|
| 2022-01-22 01:47:05 |
|
| 2021-05-13 05:22:51 |
|
| 2021-05-03 21:23:16 |
|
