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

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CVE-2013-7176

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
01/02/2014
Last modified:
11/04/2025

Description

config/filter.d/postfix.conf in the postfix filter in Fail2ban before 0.8.11 allows remote attackers to trigger the blocking of an arbitrary IP address via a crafted e-mail address that matches an improperly designed regular expression.

Impact

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

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:* 0.8.10 (including)
cpe:2.3:a:fail2ban:fail2ban:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.1.2:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.3.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.1:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.2:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.3:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.4:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.5.5:*:*:*:*:*:*:*
cpe:2.3:a:fail2ban:fail2ban:0.6.0:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools