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 injection" attack, a similar issue to CVE-2011-0411.
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History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-06T22:53:17.429Z
Reserved: 2011-05-23T00:00:00
Link: CVE-2011-2165

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Status : Deferred
Published: 2011-05-23T22:55:01.553
Modified: 2025-04-11T00:51:21.963
Link: CVE-2011-2165

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