ASUS RT-AC87U any version

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. When processing the /start_apply.htm POST data, there is a command injection issue via shell metacharacters in the fb_email parameter. By using this issue, an attacker can control the router and get shell.

Main_Analysis_Content.asp in /apply.cgi on ASUS RT-AC66U, RT-AC68U, RT-AC86U, RT-AC88U, RT-AC1900, RT-AC2900, and RT-AC3100 devices before 3.0.0.4.384_10007; RT-N18U devices before 3.0.0.4.382.39935; RT-AC87U and RT-AC3200 devices before 3.0.0.4.382.50010; and RT-AC5300 devices before 3.0.0.4.384.20287 allows OS command injection via the pingCNT and destIP fields of the SystemCmd variable.

An improper access control vulnerability exists in RT-AC87U all versions. An attacker may read or write files that are not intended to be accessed by connecting to a target device via tftp.

ASUS RT-A88U 3.0.0.4.386_45898 is vulnerable to Cross Site Scripting (XSS). The ASUS router admin panel does not sanitize the WiFI logs correctly, if an attacker was able to change the SSID of the router with a custom payload, they could achieve stored XSS on the device.

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. An unauthenticated user can trigger a DoS of the httpd service via the /APP_Installation.asp?= URI.

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. An unauthenticated user can request /update_applist.asp to see if a USB device is attached to the router and if there are apps installed on the router.

Cross-site request forgery (CSRF) vulnerability on ASUS JAPAN RT-AC87U routers with firmware 3.0.0.4.378.3754 and earlier, RT-AC68U routers with firmware 3.0.0.4.376.3715 and earlier, RT-AC56S routers with firmware 3.0.0.4.376.3715 and earlier, RT-N66U routers with firmware 3.0.0.4.376.3715 and earlier, and RT-N56U routers with firmware 3.0.0.4.376.3715 and earlier allows remote attackers to hijack the authentication of arbitrary users.

ASUS JAPAN RT-AC87U routers with firmware 3.0.0.4.378.3754 and earlier, RT-AC68U routers with firmware 3.0.0.4.376.3715 and earlier, RT-AC56S routers with firmware 3.0.0.4.376.3715 and earlier, RT-N66U routers with firmware 3.0.0.4.376.3715 and earlier, and RT-N56U routers with firmware 3.0.0.4.376.3715 and earlier allow remote authenticated users to execute arbitrary OS commands via unspecified vectors.

Cross-site scripting vulnerability in ASUS RT-AC87U Firmware version prior to 3.0.0.4.378.9383 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.