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DreamHost Breach Exposed FTP/SFTP Logins Through File Manager

The vulnerability let attackers harvest site credentials and may have revealed some webmail session data, raising the prospect of site takeover and mailbox compromise.

Overview

  • An attacker exploited a flaw in DreamHost’s web-based File Manager to collect FTP and SFTP usernames and passwords for users who logged into the service during the exposure period.
  • DreamHost says the intruder may also have accessed webmail session information for a limited set of users, which could allow mailbox takeover or malicious forwarding rules.
  • The company says it blocked the attacker, patched the File Manager, stopped active sessions, invalidated affected passwords and forced users to reset credentials while restoring services.
  • DreamHost is offering one year of Equifax credit monitoring to notified individuals and is urging customers to inspect site files, review mail forwarding rules, and change any reused passwords.
  • The firm has not disclosed how many accounts were affected and has not answered detailed media questions, leaving customers uncertain and increasing calls for clearer host disclosure and follow-up audits.