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Vulnerability Details : CVE-2011-0411

The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 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.
Publish Date : 2011-03-16 Last Update Date : 2017-08-16
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 264

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
AV:N/AC:H/Au:N/C:P/I:P/A:N 2011-01-19 2011-03-05
If you are a vendor and you have additional data which can be automatically imported into our database, please contact admin @

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-0411 unix
DEPRECATED: ELSA-2011-0423 -- postfix security update (moderate) oval:org.mitre.oval:def:28108 unix
DSA-2233-1 postfix -- several oval:org.mitre.oval:def:13019 unix
DSA-2346-1 proftpd-dfsg -- several oval:org.mitre.oval:def:15394 unix
DSA-2346-2 proftpd-dfsg -- several oval:org.mitre.oval:def:15217 unix
ELSA-2011:0422: postfix security update (Moderate) oval:org.mitre.oval:def:23277 unix
ELSA-2011:0423: postfix security update (Moderate) oval:org.mitre.oval:def:23454 unix
RHSA-2011:0422: postfix security update (Moderate) oval:org.mitre.oval:def:21591 unix
RHSA-2011:0422: postfix security update (Moderate) oval:com.redhat.rhsa:def:20110422 unix
RHSA-2011:0423: postfix security update (Moderate) oval:org.mitre.oval:def:21792 unix
RHSA-2011:0423: postfix security update (Moderate) oval:com.redhat.rhsa:def:20110423 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-0411

# Product Type Vendor Product Version Update Edition Language
1 Application Postfix Postfix 2.4 Version Details Vulnerabilities
2 Application Postfix Postfix 2.4.0 Version Details Vulnerabilities
3 Application Postfix Postfix 2.4.1 Version Details Vulnerabilities
4 Application Postfix Postfix 2.4.2 Version Details Vulnerabilities
5 Application Postfix Postfix 2.4.3 Version Details Vulnerabilities
6 Application Postfix Postfix 2.4.4 Version Details Vulnerabilities
7 Application Postfix Postfix 2.4.5 Version Details Vulnerabilities
8 Application Postfix Postfix 2.4.6 Version Details Vulnerabilities
9 Application Postfix Postfix 2.4.7 Version Details Vulnerabilities
10 Application Postfix Postfix 2.4.8 Version Details Vulnerabilities
11 Application Postfix Postfix 2.4.9 Version Details Vulnerabilities
12 Application Postfix Postfix 2.4.10 Version Details Vulnerabilities
13 Application Postfix Postfix 2.4.11 Version Details Vulnerabilities
14 Application Postfix Postfix 2.4.12 Version Details Vulnerabilities
15 Application Postfix Postfix 2.4.13 Version Details Vulnerabilities
16 Application Postfix Postfix 2.4.14 Version Details Vulnerabilities
17 Application Postfix Postfix 2.4.15 Version Details Vulnerabilities
18 Application Postfix Postfix 2.5.0 Version Details Vulnerabilities
19 Application Postfix Postfix 2.5.1 Version Details Vulnerabilities
20 Application Postfix Postfix 2.5.2 Version Details Vulnerabilities
21 Application Postfix Postfix 2.5.3 Version Details Vulnerabilities
22 Application Postfix Postfix 2.5.4 Version Details Vulnerabilities
23 Application Postfix Postfix 2.5.5 Version Details Vulnerabilities
24 Application Postfix Postfix 2.5.6 Version Details Vulnerabilities
25 Application Postfix Postfix 2.5.7 Version Details Vulnerabilities
26 Application Postfix Postfix 2.5.8 Version Details Vulnerabilities
27 Application Postfix Postfix 2.5.9 Version Details Vulnerabilities
28 Application Postfix Postfix 2.5.10 Version Details Vulnerabilities
29 Application Postfix Postfix 2.5.11 Version Details Vulnerabilities
30 Application Postfix Postfix 2.6 Version Details Vulnerabilities
31 Application Postfix Postfix 2.6.0 Version Details Vulnerabilities
32 Application Postfix Postfix 2.6.1 Version Details Vulnerabilities
33 Application Postfix Postfix 2.6.2 Version Details Vulnerabilities
34 Application Postfix Postfix 2.6.3 Version Details Vulnerabilities
35 Application Postfix Postfix 2.6.4 Version Details Vulnerabilities
36 Application Postfix Postfix 2.6.5 Version Details Vulnerabilities
37 Application Postfix Postfix 2.6.6 Version Details Vulnerabilities
38 Application Postfix Postfix 2.6.7 Version Details Vulnerabilities
39 Application Postfix Postfix 2.6.8 Version Details Vulnerabilities
40 Application Postfix Postfix 2.7.0 Version Details Vulnerabilities
41 Application Postfix Postfix 2.7.1 Version Details Vulnerabilities
42 Application Postfix Postfix 2.7.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Postfix Postfix 42

- References For CVE-2011-0411
VUPEN ADV-2011-0752
XF multiple-starttls-command-execution(65932)
REDHAT RHSA-2011:0423
VUPEN ADV-2011-0611
BID 46767 Multiple Vendors STARTTLS Implementation Plaintext Arbitrary Command Injection Vulnerability Release Date:2012-08-21
CERT-VN VU#555316
APPLE APPLE-SA-2011-10-12-3
SECTRACK 1025179
GENTOO GLSA-201206-33
SUSE SUSE-SR:2011:009

- Metasploit Modules Related To CVE-2011-0411

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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