CVE-2009-0362
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…
Does this matter?
Lower severity and a low EPSS score (1.30%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.0 MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
- EPSS
- 1.30% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- fail2ban/fail2ban
- Source
- cve@mitre.org
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163Exploit
- http://secunia.com/advisories/33890Vendor Advisory
- http://www.securityfocus.com/bid/33734
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163Exploit
- http://secunia.com/advisories/33890Vendor Advisory
- http://www.securityfocus.com/bid/33734
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.