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Advisories

RustDesk - FileTransfer Session Authorization Scope Bypass

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severity
high
date
Affecting

  • RustDesk <= ff226f6d8013dee2de5a6553abaf67bf32b3e875

CWE
  • CWE-863 Incorrect Authorization
CVSS
7.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Credit
ashdfrkl
Description
RustDesk gates incoming control messages on per-capability flags rather than on the session's authorized connection type, and a file-transfer session does not clear those flags. A peer holding only a valid FileTransfer authorization can inject keyboard and mouse input and reach the unguarded screenshot and display-capture handlers, acting outside its granted scope.

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