Stack-based buffer overflow in ASUSDiscovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RTAC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66UB1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RTAC1200GU, RTAC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HPB1, RT-N12D1, RT-N12+, RTN12+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.

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

DISPUTED An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices. An attacker can execute arbitrary commands because api.php has an eval call, as demonstrated by the /6/api.php?function=command&class=remote&Cc='ls' URI. NOTE: the vendor indicates that Merlin.PHP is designed only for use on a trusted intranet network, and intentionally allows remote code execution.

DISPUTED An issue was discovered in the Merlin.PHP component 0.6.6 for Asuswrt-Merlin devices. An attacker can execute arbitrary commands because exec.php has a popen call. NOTE: the vendor indicates that Merlin.PHP is designed only for use on a trusted intranet network, and intentionally allows remote code execution.

A memory corruption vulnerability exists in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.38648706 and Asuswrt-Merlin New Gen prior to 386.7.. A specially-crafted HTTP request can lead to memory corruption. An attacker can send a network request to trigger this vulnerability.

Stack buffer overflow in httpd in Asuswrt-Merlin firmware 380.670RT-AC5300 and earlier for ASUS devices and ASUS firmware for ASUS RT-AC5300, RTAC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66UB1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RTAC1200GU, RTAC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HPB1, RT-N12D1, RT-N12+, RTN12+PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code on the router by sending a crafted http GET request packet that includes a long deleteofflineclient parameter in the url.

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 /APPInstallation.asp?= URI.

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

Information disclosure in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to acquire information on internal network IP address ranges by reading the newlanip variable on the errorpage.htm page.

Information disclosure in Asuswrt-Merlin firmware for ASUS devices older than 384.4 and ASUS firmware before 3.0.0.4.382.50470 for devices allows remote attackers to acquire information on internal network devices' hostnames and MAC addresses by reading the customid variable on the blocking.asp page.