CVE-2023-35720 ASUS RT-AX92U lighttpd mod_webdav.so SQL Injection Information Disclosure Vulnerability

Medium 6.5 Published Updated

Network-adjacent attackers can exploit SQL injection in the WebDAV module to disclose sensitive information on ASUS RT-AX92U routers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-35720?

CVE-2023-35720 is a medium-severity SQL injection vulnerability in ASUS RT-AX92U, published on 3 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ASUS RT-AX92U lighttpd mod_webdav.so SQL Injection Information Disclosure Vulnerability. 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. Was ZDI-CAN-16078.

Weakness: CWE-89

Which versions are affected by CVE-2023-35720?

It affects 1 product.

Products include Asus Rt-Ax92u Firmware.

How do I fix CVE-2023-35720?

No fix has been published for CVE-2023-35720 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2023-35720 being exploited?

There is no known exploitation of CVE-2023-35720 in the wild and no public exploit code.

Sources

Also known as GHSA-qm9c-rrj6-5xmx.

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