Advisory Details

August 25th, 2023

LG LED Assistant setThumbnailRc Directory Traversal Remote Code Execution Vulnerability

ZDI-23-1222
ZDI-CAN-20210

CVE ID
CVSS SCORE 9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS LG
AFFECTED PRODUCTS LED Assistant
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of LG LED Assistant. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the /api/installation/setThumbnailRc endpoint. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the current user.

ADDITIONAL DETAILS LG has issued an update to correct this vulnerability. More details can be found at:
https://lgsecurity.lge.com/bulletins/idproducts#updateDetails
DISCLOSURE TIMELINE
  • 2023-03-10 - Vulnerability reported to vendor
  • 2023-08-25 - Coordinated public release of advisory
CREDIT rgod
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