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.

Stack-based buffer overflow in ASUS_Discovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code via long device information that is mishandled during a strcat to a device list.

Stack buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code on the router by hosting a crafted device description XML document (that includes a serviceType element) at a URL specified within a Location header in an SSDP response.

Global buffer overflow in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to write shellcode at any address in the heap; this can be used to execute arbitrary code on the router by hosting a crafted device description XML document at a URL specified within a Location header in an SSDP response.

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.

The Network Analysis tab (Main_Analysis_Content.asp) in the ASUS RT-AC68U and other RT series routers with firmware before 3.0.0.4.374.5047 allows remote authenticated users to execute arbitrary commands via shell metacharacters in the Target field (destIP parameter).

Advanced_System_Content.asp in the ASUS RT series routers with firmware before 3.0.0.4.374.5517, when an administrator session is active, allows remote authenticated users to obtain the administrator user name and password by reading the source code.

Cross-site scripting (XSS) vulnerability in Advanced_Wireless_Content.asp in ASUS RT-AC68U and other RT series routers with firmware before 3.0.0.4.374.5047 allows remote attackers to inject arbitrary web script or HTML via the current_page parameter to apply.cgi.