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- Keyword (text search): cpe:2.3:a:fail2ban:fail2ban:0.8.10:*:*:*:*:*:*:*
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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2021-32749 |
fail2ban is a daemon to ban hosts that cause multiple authentication errors. In versions 0.9.7 and prior, 0.10.0 through 0.10.6, and 0.11.0 through 0.11.2, there is a vulnerability that leads to possible remote code execution in the mailing action mail-whois. Command `mail` from mailutils package used in mail actions like `mail-whois` can execute command if unescaped sequences (`\n~`) are available in "foreign" input (for instance in whois output). To exploit the vulnerability, an attacker would need to insert malicious characters into the response sent by the whois server, either via a MITM attack or by taking over a whois server. The issue is patched in versions 0.10.7 and 0.11.3. As a workaround, one may avoid the usage of action `mail-whois` or patch the vulnerability manually. Published: July 16, 2021; 2:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.1 HIGH V2.0: 6.8 MEDIUM |
CVE-2013-7177 |
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. Published: February 01, 2014; 10:55:04 AM -0500 |
V4.0:(not available) V3.x:(not available) V2.0: 5.0 MEDIUM |
CVE-2013-7176 |
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. Published: February 01, 2014; 10:55:04 AM -0500 |
V4.0:(not available) V3.x:(not available) V2.0: 5.0 MEDIUM |