RustDesk before 1.5.0 on Windows fails to enforce the one-way file transfer option against peer clipboard file requests, allowing authenticated peers to read files from the host clipboard. Attackers can send FormatDataRequest and FileContentsRequest messages to retrieve copied files by guessing the FileGroupDescriptorW format identifier.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/rustdesk/rustdesk
disclosure@vulncheck.com
https://github.com/rustdesk/rustdesk/blob/1.4.9/libs/clipboard/src/windows/wf_c…
disclosure@vulncheck.com
https://github.com/rustdesk/rustdesk/blob/1.4.9/src/ui_cm_interface.rs#L618-L638
disclosure@vulncheck.com
https://github.com/rustdesk/rustdesk/commit/f299fb9906006247863250d7dfaa016f29e…
disclosure@vulncheck.com
https://github.com/rustdesk/rustdesk/pull/16333
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/rustdesk-before-1.5.0-one-way-file-transfe…
disclosure@vulncheck.com