October CMS upload process vulnerable to RCE via Race Condition
The advisory, in context
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:
- DucNT, HungTD and GiangVQ from RedTeam@VNG Security Response Center.
For more information
If you have any questions or comments about this advisory:
- Email us at hello@octobercms.com
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
Earlier releases before 1.0.476
Fixed in 1.0.476
157 explicitly affected versions
v1.0.319, v1.0.320, v1.0.321, v1.0.322, v1.0.323, v1.0.324, v1.0.325, v1.0.326, v1.0.327, v1.0.328, v1.0.329, v1.0.330, v1.0.331, v1.0.332, v1.0.333, v1.0.334, v1.0.335, v1.0.336, v1.0.337, v1.0.338, v1.0.339, v1.0.340, v1.0.341, v1.0.342, v1.0.343, v1.0.344, v1.0.345, v1.0.346, v1.0.347, v1.0.348, v1.0.349, v1.0.350, v1.0.351, v1.0.352, v1.0.353, v1.0.354, v1.0.355, v1.0.356, v1.0.357, v1.0.358, v1.0.359, v1.0.360, v1.0.361, v1.0.362, v1.0.363, v1.0.364, v1.0.365, v1.0.366, v1.0.367, v1.0.368, v1.0.369, v1.0.370, v1.0.371, v1.0.372, v1.0.373, v1.0.374, v1.0.375, v1.0.376, v1.0.377, v1.0.378, v1.0.379, v1.0.380, v1.0.381, v1.0.382, v1.0.383, v1.0.384, v1.0.385, v1.0.386, v1.0.387, v1.0.388, v1.0.389, v1.0.390, v1.0.391, v1.0.392, v1.0.393, v1.0.394, v1.0.395, v1.0.396, v1.0.397, v1.0.398, v1.0.399, v1.0.400, v1.0.401, v1.0.402, v1.0.403, v1.0.404, v1.0.405, v1.0.406, v1.0.407, v1.0.408, v1.0.409, v1.0.410, v1.0.411, v1.0.412, v1.0.413, v1.0.414, v1.0.415, v1.0.416, v1.0.417, v1.0.418, v1.0.419, v1.0.420, v1.0.421, v1.0.422, v1.0.423, v1.0.424, v1.0.425, v1.0.426, v1.0.427, v1.0.428, v1.0.429, v1.0.430, v1.0.431, v1.0.432, v1.0.433, v1.0.434, v1.0.435, v1.0.436, v1.0.437, v1.0.438, v1.0.439, v1.0.440, v1.0.441, v1.0.442, v1.0.443, v1.0.444, v1.0.445, v1.0.446, v1.0.447, v1.0.448, v1.0.449, v1.0.450, v1.0.451, v1.0.452, v1.0.453, v1.0.454, v1.0.455, v1.0.456, v1.0.457, v1.0.458, v1.0.459, v1.0.460, v1.0.461, v1.0.462, v1.0.463, v1.0.464, v1.0.465, v1.0.466, v1.0.467, v1.0.468, v1.0.469, v1.0.470, v1.0.471, v1.0.472, v1.0.473, v1.0.474, v1.0.475
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.476"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v1.0.319",
"v1.0.320",
"v1.0.321",
"v1.0.322",
"v1.0.323",
"v1.0.324",
"v1.0.325",
"v1.0.326",
"v1.0.327",
"v1.0.328",
"v1.0.329",
"v1.0.330",
"v1.0.331",
"v1.0.332",
"v1.0.333",
"v1.0.334",
"v1.0.335",
"v1.0.336",
"v1.0.337",
"v1.0.338",
"v1.0.339",
"v1.0.340",
"v1.0.341",
"v1.0.342",
"v1.0.343",
"v1.0.344",
"v1.0.345",
"v1.0.346",
"v1.0.347",
"v1.0.348",
"v1.0.349",
"v1.0.350",
"v1.0.351",
"v1.0.352",
"v1.0.353",
"v1.0.354",
"v1.0.355",
"v1.0.356",
"v1.0.357",
"v1.0.358",
"v1.0.359",
"v1.0.360",
"v1.0.361",
"v1.0.362",
"v1.0.363",
"v1.0.364",
"v1.0.365",
"v1.0.366",
"v1.0.367",
"v1.0.368",
"v1.0.369",
"v1.0.370",
"v1.0.371",
"v1.0.372",
"v1.0.373",
"v1.0.374",
"v1.0.375",
"v1.0.376",
"v1.0.377",
"v1.0.378",
"v1.0.379",
"v1.0.380",
"v1.0.381",
"v1.0.382",
"v1.0.383",
"v1.0.384",
"v1.0.385",
"v1.0.386",
"v1.0.387",
"v1.0.388",
"v1.0.389",
"v1.0.390",
"v1.0.391",
"v1.0.392",
"v1.0.393",
"v1.0.394",
"v1.0.395",
"v1.0.396",
"v1.0.397",
"v1.0.398",
"v1.0.399",
"v1.0.400",
"v1.0.401",
"v1.0.402",
"v1.0.403",
"v1.0.404",
"v1.0.405",
"v1.0.406",
"v1.0.407",
"v1.0.408",
"v1.0.409",
"v1.0.410",
"v1.0.411",
"v1.0.412",
"v1.0.413",
"v1.0.414",
"v1.0.415",
"v1.0.416",
"v1.0.417",
"v1.0.418",
"v1.0.419",
"v1.0.420",
"v1.0.421",
"v1.0.422",
"v1.0.423",
"v1.0.424",
"v1.0.425",
"v1.0.426",
"v1.0.427",
"v1.0.428",
"v1.0.429",
"v1.0.430",
"v1.0.431",
"v1.0.432",
"v1.0.433",
"v1.0.434",
"v1.0.435",
"v1.0.436",
"v1.0.437",
"v1.0.438",
"v1.0.439",
"v1.0.440",
"v1.0.441",
"v1.0.442",
"v1.0.443",
"v1.0.444",
"v1.0.445",
"v1.0.446",
"v1.0.447",
"v1.0.448",
"v1.0.449",
"v1.0.450",
"v1.0.451",
"v1.0.452",
"v1.0.453",
"v1.0.454",
"v1.0.455",
"v1.0.456",
"v1.0.457",
"v1.0.458",
"v1.0.459",
"v1.0.460",
"v1.0.461",
"v1.0.462",
"v1.0.463",
"v1.0.464",
"v1.0.465",
"v1.0.466",
"v1.0.467",
"v1.0.468",
"v1.0.469",
"v1.0.470",
"v1.0.471",
"v1.0.472",
"v1.0.473",
"v1.0.474",
"v1.0.475"
]
}From 1.1.0 before 1.1.12
Fixed in 1.1.12
10 explicitly affected versions
v1.1.0, v1.1.1, v1.1.10, v1.1.11, v1.1.2, v1.1.3, v1.1.4, v1.1.5, v1.1.6, v1.1.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
"fixed": "1.1.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v1.1.0",
"v1.1.1",
"v1.1.10",
"v1.1.11",
"v1.1.2",
"v1.1.3",
"v1.1.4",
"v1.1.5",
"v1.1.6",
"v1.1.9"
]
}From 2.0.0 before 2.2.15
Fixed in 2.2.15
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.2.15"
}
],
"type": "ECOSYSTEM"
}
],
"versions": []
}