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CVE-2009-0362

nvd nist
Published: Feb 13, 2009Modified: Apr 23, 2026

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4.0
Vector
AV:N/AC:L/Au:S/C:N/I:N/A:P
Exploitability: 8.0 / Impact: 2.9
Source: NVD

Description

filter.d/wuftpd.conf in Fail2ban 0.8.3 uses an incorrect regular expression that allows remote attackers to cause a denial of service (forced authentication failures) via a crafted reverse-resolved DNS name (rhost) entry that contains a substring that is interpreted as an IP address, a different vulnerability than CVE-2007-4321.

Affected (1)

Products: Fail2ban: Fail2ban
Fail2ban
1 product
Fail2ban
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Fail2ban
Version 0.8.3

Related CWEs

CWE-287
Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (6)

Source: cve@mitre.org
Exploit
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.