Vulnerability CVE-2013-7177
Published: 2014-02-01

Description:
config/filter.d/cyrus-imap.conf in the cyrus-imap 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.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Fail2ban -> Fail2ban 

 References:
http://www.kb.cert.org/vuls/id/686662
https://github.com/fail2ban/fail2ban/commit/bd175f026737d66e7110868fb50b3760ff75e087
http://www.debian.org/security/2014/dsa-2979
http://lists.opensuse.org/opensuse-updates/2014-03/msg00021.html
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