rclone: FTP cross-session auth-proxy backend confusion
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| rclone | rclone | affected |
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No data.
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| Rclone | Rclone |
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| Source | ID | Title |
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Github GHSA |
GHSA-c476-6w5q-jw77 | rclone: FTP cross-session auth-proxy backend confusion |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.234% probability within 30 days)
| Type | Values Removed | Values Added |
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| CPEs | cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:* |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Rclone
Rclone rclone |
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| Vendors & Products |
Rclone
Rclone rclone |
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| Description | rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.64.0 until 1.75.1, the FTP auth-proxy driver in cmd/serve/ftp/ftp.go stores one obscured password per username in the server-wide userPass map[string]string instead of binding the credential or VFS to the authenticated session. If two accepted credentials use the same username but resolve to different proxy backends, a later CheckPasswd login overwrites userPass[user], and subsequent getVFS operations on the first session are reauthorized with the later password. The first session can then read, create, overwrite, rename, or delete objects using the second credential’s backend authority. Exploitation requires the later same-username login to occur while the first session remains open. This issue is fixed in version 1.75.1. | |
| Title | rclone: FTP cross-session auth-proxy backend confusion | |
| Weaknesses | CWE-488 | |
| References |
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| Metrics |
cvssV3_1
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