CVE-2013-7176 describes a vulnerability in Fail2ban versions prior to 0.8.11, specifically within the postfix filter's config/filter.d/postfix.conf. This flaw allows remote attackers to trigger the blocking of an arbitrary IP address by sending a specially crafted email address that exploits an improperly designed regular expression. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, but only resulting in partial availability impact (denial of service). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.8.10CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:*:*:*:*:*:*:*:* | ||
0.1.0CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:0.1.0:*:*:*:*:*:*:* | ||
0.1.1CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:0.1.1:*:*:*:*:*:*:* | ||
0.1.2CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:0.1.2:*:*:*:*:*:*:* | ||
0.3.0CPE matchmatch criteria | cpe:2.3:a:fail2ban:fail2ban:0.3.0:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.