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Advisories

Rclone v1.68.0 before v1.75.2 Authorization Bypass in serve s3 Multipart Uploads

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Severity
medium
Date
Affecting

  • rclone >= 1.68.0, < 1.75.2

CWE
  • CWE-639 Authorization Bypass Through User-Controlled Key
CVSS
6.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
Credit
torjan0, ncw
Description
Rclone from v1.68.0 before v1.75.2 contains an authorization bypass vulnerability in serve s3 --auth-proxy that allows authenticated tenants to manipulate other tenants' multipart uploads by referencing their upload IDs. Attackers who learn a victim's bucket, object, and upload ID can inject parts, complete, or abort in-flight uploads and view upload and object metadata across tenants.

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