A Blind Boolean SQL injection vulnerability exists in Spiceworks Help Desk Server prior to version 1.3.3, specifically in the order_by_for_ticket function within app/models/reporting/database_query.rb. An authenticated attacker can exploit the sort parameter to execute arbitrary SQL commands. This vulnerability can be further leveraged to leak local files from the host system and achieve remote code execution via deserialization of malicious data.
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This repository provides a full exploit chain for CVE-2021-43609, a critical vulnerability in Spiceworks Help Desk Server (HDS) versions prior to 1.3.3. The exploit leverages a blind SQL injection in the 'sort' parameter of the '/api/tickets' endpoint, accessible to authenticated agent or admin users. The main exploit script, 'poc.py', performs the following steps: (1) Authenticates to the target web application, (2) Exploits the SQL injection to read arbitrary files (notably '/var/opt/tron/etc/env') and extract the application's secret_key_base, and (3) Generates a Ruby script ('rce/rce.rb') that crafts a deserialization payload to trigger remote code execution via a reverse shell. The repository includes a full Rails application in the 'rce/' directory, which is used to facilitate the deserialization attack. The exploit requires the attacker to provide the target URL, valid credentials, and listener details. The writeup and README provide detailed background, usage instructions, and technical analysis of the vulnerability and exploit chain. The main attack vector is network-based, targeting the web interface of Spiceworks HDS. Key fingerprintable endpoints include the '/api/tickets' and '/rails/active_storage/disk/' URLs, as well as the file path '/var/opt/tron/etc/env' on the target system.
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