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Overview

Vulnerability Score 6.8 6.8
CVE Id CVE-2011-1431
Last Modified 21 Sep 2011 11:30:15
Published 16 Mar 2011 06:55:04
Confidentiality Impact PARTIAL PARTIAL
Integrity Impact PARTIAL PARTIAL
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity MEDIUM
Authentication NONE

CVE-2011-1431

Summary

The STARTTLS implementation in qmail-smtpd.c in qmail-smtpd in the netqmail-1.06-tls patch for netqmail 1.06 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.

Vulnerable Systems

Application

  • Frederik Vermeulen Netqmail 1.06


References

MISC - http://www.kb.cert.org/vuls/id/MAPG-8D9M5Q

CERT-VN - VU#555316

CONFIRM - http://inoa.net/qmail-tls/vu555316.patch

XF - multiple-starttls-command-execution(65932)

VUPEN - ADV-2011-0612

BID - 46767

BUGTRAQ - 20110307 Plaintext injection in STARTTLS (multiple implementations)

MISC - http://www.postfix.org/CVE-2011-0411.html

SREASON - 8144


Last Updated: 27 May 2016 10:56:19