Linksys E8450 portal.cgi strcpy stack-based overflow

A vulnerability was identified in Linksys E8450 1.2.00.360516. Affected is the function strcpy of the file /www/cgi-bin/portal.cgi. Such manipulation of the argument hidden_timezone leads to stack-based buffer overflow. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Linksys E8450 HTTP POST Request portal.cgi set_device_language buffer overflow

A vulnerability, which was classified as critical, was found in Linksys E8450 up to 1.2.00.360516. This affects the function set_device_language of the file portal.cgi of the component HTTP POST Request Handler. The manipulation of the argument dut_language leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Linksys E8450 v1.2.00.360516 was discovered to contain a command injection vulnerability via wizard_status.

Linksys E8450 v1.2.00.360516 was discovered to contain a buffer overflow vulnerability. The parsed field (page) is copied to the stack without length verification.

Linksys E8450 v1.2.00.360516 was discovered to contain a buffer overflow vulnerability. The parsed field (anonymous_protect_status) is copied to the stack without length verification.

Linksys E8450 v1.2.00.360516 was discovered to contain a command injection vulnerability via userEmail.

Linksys E8450 v1.2.00.360516 was discovered to contain a buffer overflow vulnerability. The parsed field (action) is copied to the stack without length verification.

Linksys E8450 v1.2.00.360516 was discovered to contain a buffer overflow vulnerability. The parsed field (ipv6_protect_status) is copied to the stack without length verification.

Linksys E8450 v1.2.00.360516 was discovered to contain a command injection vulnerability via the field id_email_check_btn.

Linksys E8450 v1.2.00.360516 was discovered to contain a buffer overflow vulnerability. The parsed field (dhcpstart_ip) is copied to the stack without length verification.

Linksys E8450 v1.2.00.360516 was discovered to contain a buffer overflow vulnerability. The parsed field (lan_ipaddr) is copied to the stack without length verification.

Linksys E8450 v1.2.00.360516 was discovered to contain a buffer overflow vulnerability. The parsed field (hidden_dhcp_num) is copied to the stack without length verification.

Linksys AX3200 1.1.00 is vulnerable to OS command injection by authenticated users via shell metacharacters to the diagnostics traceroute page.