Linksys EA7500 2.0.8.194281 - Cross-Site Scripting

2021-03-2500:00:00

MiningOmerta

www.exploit-db.com

876

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

6.8 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.008 Low

EPSS

Percentile

81.7%

JSON

# Exploit Title: Linksys EA7500 2.0.8.194281 - Cross-Site Scripting 
# Date: 3/24/21
# Exploit Author: MiningOmerta
# Vendor Homepage: https://www.linksys.com/
# Version: EA7500 Firmware Version: 2.0.8.194281
# CVE: CVE-2012-6708
# Tested On: Linksys EA7500 (jQuery version 1.7.1)

# Cross-Site Scripting Vulnerability on modern versions of Linksys Smart-Wifi home routers. 
# Caused by outdated jQuery(strInput) version : <= 1.7.1  (Fixed in version 1.9.0)
# Credit also to Reddit user michael1026

###
POC
###

1. When logging into the router (http://LHOST or http://LHOST:10080), choose "Click Here" 
   next to "Dont Have an Account? " or Choose "click here" after "To login with your Linksys Smart Wi-Fi account", 
   you will be redirected with a login prompt with both Email Address and Password forms. 

2. Make your email address "<img src=0 onerror=alert(XSS)>" without the double quotes. 

3. Payload will be triggered when mouse is clicked anywhere within the Email Address form box or when form is submitted.