Arbitrary IP Blocking Vulnerability in Fail2ban's Postfix Filter

CVE-2013-7176 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

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.

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