PT-2023-11790 · Citadel · Citadel

Name of the Vulnerable Software and Affected Versions: Citadel through webcit-926 Description: An issue allows meddler-in-the-middle attackers to pipeline commands after POP3 STLS, IMAP STARTTLS, or SMTP STARTTLS commands, injecting cleartext commands into an encrypted user session. This can lead...

Command injection

The STARTTLS implementation in WatchGuard XCS 9.0 and 9.1 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command...