Advisory Details

February 10th, 2022

(Pwn2Own) TP-Link AC1750 NetUSB Out-Of-Bounds Read Remote Code Execution Vulnerability

ZDI-22-262
ZDI-CAN-15773

CVE ID CVE-2022-24352
CVSS SCORE 8.8, (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS TP-Link
AFFECTED PRODUCTS AC1750
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link AC1750 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the NetUSB.ko kernel module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root.

ADDITIONAL DETAILS

Fixed in firmware 211210.


DISCLOSURE TIMELINE
  • 2021-12-01 - Vulnerability reported to vendor
  • 2022-02-10 - Coordinated public release of advisory
CREDIT trichimtrich and nyancat0131
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