Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-0411

Severity CVSS v4.0:
Pending analysis
Type:
CWE-264 Permissions, Privileges, and Access Control
Publication date:
16/03/2011
Last modified:
11/04/2025

Description

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.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:postfix:postfix:2.4:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.3:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.4:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.5:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.6:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.7:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.8:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.9:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.10:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.11:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.12:*:*:*:*:*:*:*
cpe:2.3:a:postfix:postfix:2.4.13:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools