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Security Advisories: GSA_kwCzR0hTQS04djdoLWNwYzItcjhqcM4AAtX7

October CMS upload process vulnerable to RCE via Race Condition

Impact

This advisory affects plugins that expose the October\Rain\Database\Attach\File::fromData as a public interface. This vulnerability does not affect vanilla installations of October CMS since this method is not exposed or used by the system internally or externally.

When the developer allows the user to specify their own filename in the fromData method, an unauthenticated user can perform remote code execution (RCE) by exploiting a race condition in the temporary storage directory.

Patches

The issue has been patched in Build 476 (v1.0.476) and v1.1.12 and v2.2.15.

Workarounds

Apply https://github.com/octobercms/library/commit/fe569f3babf3f593be2b1e0a4ae0283506127a83 to your installation manually if unable to upgrade to Build 476 (v1.0.476) or v1.1.12 or v2.2.15.

References

Credits to:

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-8v7h-cpc2-r8jp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS04djdoLWNwYzItcjhqcM4AAtX7
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: about 2 years ago


CVSS Score: 8.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Percentage: 0.00433
EPSS Percentile: 0.74506

Identifiers: GHSA-8v7h-cpc2-r8jp, CVE-2022-24800
References: Repository: https://github.com/octobercms/october
Blast Radius: 20.5

Affected Packages

packagist:october/system
Dependent packages: 37
Dependent repositories: 340
Downloads: 1,015,909 total
Affected Version Ranges: >= 2.0.0, < 2.2.15, >= 1.1.0, < 1.1.12, < 1.0.476
Fixed in: 2.2.15, 1.1.12, 1.0.476
All affected versions: 1.0.319, 1.0.320, 1.0.321, 1.0.322, 1.0.323, 1.0.324, 1.0.325, 1.0.326, 1.0.327, 1.0.328, 1.0.329, 1.0.330, 1.0.331, 1.0.332, 1.0.333, 1.0.334, 1.0.335, 1.0.336, 1.0.337, 1.0.338, 1.0.339, 1.0.340, 1.0.341, 1.0.342, 1.0.343, 1.0.344, 1.0.345, 1.0.346, 1.0.347, 1.0.348, 1.0.349, 1.0.350, 1.0.351, 1.0.352, 1.0.353, 1.0.354, 1.0.355, 1.0.356, 1.0.357, 1.0.358, 1.0.359, 1.0.360, 1.0.361, 1.0.362, 1.0.363, 1.0.364, 1.0.365, 1.0.366, 1.0.367, 1.0.368, 1.0.369, 1.0.370, 1.0.371, 1.0.372, 1.0.373, 1.0.374, 1.0.375, 1.0.376, 1.0.377, 1.0.378, 1.0.379, 1.0.380, 1.0.381, 1.0.382, 1.0.383, 1.0.384, 1.0.385, 1.0.386, 1.0.387, 1.0.388, 1.0.389, 1.0.390, 1.0.391, 1.0.392, 1.0.393, 1.0.394, 1.0.395, 1.0.396, 1.0.397, 1.0.398, 1.0.399, 1.0.400, 1.0.401, 1.0.402, 1.0.403, 1.0.404, 1.0.405, 1.0.406, 1.0.407, 1.0.408, 1.0.409, 1.0.410, 1.0.411, 1.0.412, 1.0.413, 1.0.414, 1.0.415, 1.0.416, 1.0.417, 1.0.418, 1.0.419, 1.0.420, 1.0.421, 1.0.422, 1.0.423, 1.0.424, 1.0.425, 1.0.426, 1.0.427, 1.0.428, 1.0.429, 1.0.430, 1.0.431, 1.0.432, 1.0.433, 1.0.434, 1.0.435, 1.0.436, 1.0.437, 1.0.438, 1.0.439, 1.0.440, 1.0.441, 1.0.442, 1.0.443, 1.0.444, 1.0.445, 1.0.446, 1.0.447, 1.0.448, 1.0.449, 1.0.450, 1.0.451, 1.0.452, 1.0.453, 1.0.454, 1.0.455, 1.0.456, 1.0.457, 1.0.458, 1.0.459, 1.0.460, 1.0.461, 1.0.462, 1.0.463, 1.0.464, 1.0.465, 1.0.466, 1.0.467, 1.0.468, 1.0.469, 1.0.470, 1.0.471, 1.0.472, 1.0.473, 1.0.474, 1.0.475, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.9, 1.1.10, 1.1.11
All unaffected versions: 1.0.476, 1.1.12