Advisory Details

March 31st, 2023

TP-Link AX1800 Firmware Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2023-27346
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	AX1800
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link AX1800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of firmware images. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
ADDITIONAL DETAILS	Fixed in AX21 version V3230219 https://www.tp-link.com/us/support/download/archer-ax21/v3/#Firmware
DISCLOSURE TIMELINE	2022-12-28 - Vulnerability reported to vendor 2023-03-31 - Coordinated public release of advisory
CREDIT	Kevin Wang

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