Bluetooth HCI Adaptor from Realtek has a Link Following vulnerability. Local attackers with regular privileges can create a symbolic link with the same name as a specific file, causing the product to delete arbitrary files pointed to by the link. Subsequently, attackers can leverage arbitrary file deletion to privilege escalation.
Solution:
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
Link | Tags |
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https://www.twcert.org.tw/tw/cp-132-10160-76012-1.html | third party advisory |
https://www.twcert.org.tw/en/cp-139-10161-fa1b5-2.html | third party advisory |