ghsa-wg47-6jq2-q2hh
Vulnerability from github
Published
2025-04-04 14:28
Modified
2025-04-04 14:28
Severity ?
Summary
MinIO performs incomplete signature validation for unsigned-trailer uploads
Details
Impact
This is a high priority vulnerability and users must upgrade ASAP.
The signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket,
Prior knowledge of access-key, and bucket name this user might have access to - and an access-key with a WRITE permissions is necessary.
However with relevant information in place, uploading random objects to buckets is trivial and easy via curl
Patches
Yes https://github.com/minio/minio/pull/21103
Workarounds
Reject requests with x-amz-content-sha256: STREAMING-UNSIGNED-PAYLOAD-TRAILER for now at LB layer, ask application users to use STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/minio/minio"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.0-20250403145552-8c70975283f9"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-31489"
],
"database_specific": {
"cwe_ids": [
"CWE-347"
],
"github_reviewed": true,
"github_reviewed_at": "2025-04-04T14:28:29Z",
"nvd_published_at": "2025-04-03T20:15:25Z",
"severity": "HIGH"
},
"details": "### Impact\nThis is a high priority vulnerability and users must upgrade ASAP.\n\nThe signature component of the authorization may be invalid, which would mean that as a client you can use any arbitrary secret to upload objects given the user already has prior WRITE permissions on the bucket,\n\nPrior knowledge of access-key, and bucket name this user might have access to - and an access-key with a WRITE permissions is necessary.\n\nHowever with relevant information in place, uploading random objects to buckets is trivial and easy via `curl`\n\n### Patches\nYes https://github.com/minio/minio/pull/21103\n\n### Workarounds\nReject requests with `x-amz-content-sha256: STREAMING-UNSIGNED-PAYLOAD-TRAILER` for now at LB layer, ask application users to use `STREAMING-AWS4-HMAC-SHA256-PAYLOAD-TRAILER`",
"id": "GHSA-wg47-6jq2-q2hh",
"modified": "2025-04-04T14:28:29Z",
"published": "2025-04-04T14:28:29Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/minio/minio/security/advisories/GHSA-wg47-6jq2-q2hh"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31489"
},
{
"type": "WEB",
"url": "https://github.com/minio/minio/pull/21103"
},
{
"type": "WEB",
"url": "https://github.com/minio/minio/commit/8c70975283f9f4ce80f331a25c7475a36279e519"
},
{
"type": "PACKAGE",
"url": "https://github.com/minio/minio"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
],
"summary": "MinIO performs incomplete signature validation for unsigned-trailer uploads"
}
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