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Advisories

rclone before v1.75.0 WebDAV Credential Exposure via HTTPS-to-HTTP Redirect

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severity
medium
date
Affecting

  • rclone >= 0, < 1.75.0

CWE
  • CWE-319 Cleartext Transmission of Sensitive Information
CVSS
6
CVSS V4 Vector
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
cyberlanc3r, ncw
Description
rclone versions before v1.75.0 fail to reject transport downgrades in redirect handling, allowing Basic authorization and Cookie headers to be replayed over plaintext HTTP after same-host HTTPS-to-HTTP redirects. An on-path attacker observing the plaintext hop can capture and reuse credentials to perform WebDAV operations with the compromised account's permissions.

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