Budabot 4.0 – Denial of Service (PoC)
# Exploit Title: Budabot 4.0 - Denial of Service (PoC) # Date: 2018-10-15 # Exploit Author: Ryan Delaney # Author Contact: ryan.delaney@owasp.org # Vendor Homepage: http://budabot.com/ # Software Link: http://budabot.com/forum/viewtopic.php?f=8&t=1413 # Version: 0.6 -> 4.0 # Tested on: 4.0 # CVE: CVE-2018-19290 # 1. Description # In modules/HELPBOT_MODULE in Budabot 0.6 through 4.0, lax syntax validation # allows remote attackers to perform a command injection attack against the # PHP daemon with a crafted command, resulting in a denial of service or # possibly unspecified other impact. In versions before 3.0, # modules/HELPBOT_MODULE/calc.php has the vulnerable code; in 3.0 and above, # modules/HELPBOT_MODULE/HelpbotController.class.php has the vulnerable code. # 2. Proof of Concept Start the Budabot listener, set valid configuration options, and wait for the chatbot to announce it's ready in-game. Send the chatbot a private message containing "!calc 5 x 5", and the Budabot listener will terminate. |