Advisory Details

August 23rd, 2023

ASUS RT-AX92U lighttpd mod_webdav.so SQL Injection Information Disclosure Vulnerability

ZDI-23-1166
ZDI-CAN-16078

CVE ID CVE-2023-35720
CVSS SCORE 6.5, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AFFECTED VENDORS ASUS
AFFECTED PRODUCTS RT-AX92U
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected ASUS RT-AX92U routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the mod_webdav.so module. When parsing a request, the process does not properly validate a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to disclose information in the context of root.

ADDITIONAL DETAILS ASUS has issued an update to correct this vulnerability. More details can be found at:
https://www.asus.com/networking-iot-servers/whole-home-mesh-wifi-system/aimesh-wifi-routers-and-systems/rt-ax92u/helpdesk_bios/?model2Name=RT-AX92U
DISCLOSURE TIMELINE
  • 2022-03-23 - Vulnerability reported to vendor
  • 2023-08-23 - Coordinated public release of advisory
CREDIT Anonymous
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