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S3 object keys are opaque names that may legally contain `..` segments. `serve
s3` built backend paths with `path.Join(bucket, key)`, which normalised the key
so a request such as `GET /bucket/../root-secret.txt` resolved to a file outside
the selected bucket elsewhere under the serve root. Listing prefixes and
multipart uploads were affected also.
This did not allow reading of files outside the root, but did allow reading of
files in the root which normally aren't visible; only directories are visible as
buckets normally.
Because `serve s3` maps keys to file paths it cannot represent every opaque S3
key, so rather than normalising keys (which would alias distinct keys onto one
file as well as allow traversal) it now rejects any key that is not already in
canonical path form - containing `..`, `.`, `//` or a leading or trailing slash
- with a 400 Bad Request, as MinIO does. Directory listing prefixes are
validated the same way but allow the empty bucket-root prefix and an optional
trailing slash.
Fixes: GHSA-8v25-v8p6-qf7v
(cherry picked from commit 83d1e62aa9)
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Rclone
Rclone ("rsync for cloud storage") is a command-line program to sync files and directories to and from different cloud storage providers.
Storage providers
- 1Fichier 📄
- Akamai Netstorage 📄
- Alibaba Cloud (Aliyun) Object Storage System (OSS) 📄
- Amazon S3 📄
- ArvanCloud Object Storage (AOS) 📄
- Bizfly Cloud Simple Storage 📄
- Backblaze B2 📄
- Box 📄
- Ceph 📄
- China Mobile Ecloud Elastic Object Storage (EOS) 📄
- Citrix ShareFile 📄
- Cloudflare R2 📄
- Cloudinary 📄
- Cubbit DS3 📄
- DigitalOcean Spaces 📄
- Digi Storage 📄
- Dreamhost 📄
- Drime 📄
- Dropbox 📄
- Enterprise File Fabric 📄
- Exaba 📄
- Fastly Object Storage 📄
- Fastmail Files 📄
- FileLu 📄
- Filen 📄
- Files.com 📄
- FlashBlade 📄
- FTP 📄
- GoFile 📄
- Google Cloud Storage 📄
- Google Drive 📄
- Google Photos 📄
- HDFS (Hadoop Distributed Filesystem) 📄
- Hetzner Object Storage 📄
- Hetzner Storage Box 📄
- HiDrive 📄
- Hitachi Content Platform (HCP) 📄
- HTTP 📄
- Huawei Cloud Object Storage Service(OBS) 📄
- Huawei Drive 📄
- iCloud Drive 📄
- ImageKit 📄
- Internet Archive 📄
- Internxt 📄
- Jottacloud 📄
- IBM COS S3 📄
- Impossible Cloud 📄
- Intercolo Object Storage 📄
- IONOS Cloud 📄
- Koofr 📄
- Leviia Object Storage 📄
- Liara Object Storage 📄
- Linkbox 📄
- Linode Object Storage 📄
- Magalu Object Storage 📄
- Mail.ru Cloud 📄
- Memset Memstore 📄
- MEGA 📄
- MEGA S4 Object Storage 📄
- Memory 📄
- Microsoft Azure Blob Storage 📄
- Microsoft Azure Files Storage 📄
- Microsoft OneDrive 📄
- Minio 📄
- Nextcloud 📄
- Blomp Cloud Storage 📄
- OpenDrive 📄
- OpenStack Swift 📄
- Oracle Cloud Storage 📄
- Oracle Object Storage 📄
- Outscale 📄
- OVHcloud Object Storage (Swift) 📄
- OVHcloud Object Storage (S3-compatible) 📄
- ownCloud 📄
- pCloud 📄
- Petabox 📄
- PikPak 📄
- Pixeldrain 📄
- premiumize.me 📄
- put.io 📄
- Proton Drive 📄
- QingStor 📄
- Qiniu Cloud Object Storage (Kodo) 📄
- Rabata Cloud Storage 📄
- Quatrix 📄
- Rackspace Cloud Files 📄
- RackCorp Object Storage 📄
- rsync.net 📄
- Scaleway 📄
- Seafile 📄
- Seagate Lyve Cloud 📄
- SeaweedFS 📄
- Selectel Object Storage 📄
- Servercore Object Storage 📄
- SFTP 📄
- Shade 📄
- SMB / CIFS 📄
- Spectra Logic 📄
- Storj 📄
- SugarSync 📄
- Synology C2 Object Storage 📄
- Tencent Cloud Object Storage (COS) 📄
- Uloz.to 📄
- US3 Object Storage 📄
- Wasabi 📄
- WebDAV 📄
- Yandex Disk 📄
- Zadara Object Storage 📄
- Zoho WorkDrive 📄
- Zata.ai 📄
- The local filesystem 📄
Please see the full list of all storage providers and their features
Virtual storage providers
These backends adapt or modify other storage providers
- Alias: rename existing remotes 📄
- Archive: read archive files 📄
- Cache: cache remotes (DEPRECATED) 📄
- Chunker: split large files 📄
- Combine: combine multiple remotes into a directory tree 📄
- Compress: compress files 📄
- Crypt: encrypt files 📄
- Hasher: hash files 📄
- Union: join multiple remotes to work together 📄
Features
- MD5/SHA-1 hashes checked at all times for file integrity
- Timestamps preserved on files
- Partial syncs supported on a whole file basis
- Copy mode to just copy new/changed files
- Sync (one way) mode to make a directory identical
- Bisync (two way) to keep two directories in sync bidirectionally
- Check mode to check for file hash equality
- Can sync to and from network, e.g. two different cloud accounts
- Optional large file chunking (Chunker)
- Optional transparent compression (Compress)
- Optional encryption (Crypt)
- Optional FUSE mount (rclone mount)
- Multi-threaded downloads to local disk
- Can serve local or remote files over HTTP/WebDAV/FTP/SFTP/DLNA
Installation & documentation
Please see the rclone website for:
Downloads
License
This is free software under the terms of the MIT license (check the COPYING file included in this package).