CVE-2007-4321
23Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendepss 5.7%
from disclosure to weapon0 days
Published on NVDAug 14
1st PoCJul 28
exploitation probability
5.7%top 8% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
fail2ban 0.8 and earlier does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a client protocol version identification containing an IP address string, a different vector than CVE-2006-6302.
Affected products
n/a · n/apublic PoCs found — 1✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/30430⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://bugs.gentoo.org/show_bug.cgi?id=181214http://osvdb.org/42484http://secunia.com/advisories/23237http://secunia.com/advisories/28374http://security.gentoo.org/glsa/glsa-200707-13.xmlhttp://www.debian.org/security/2008/dsa-1456http://www.ossec.net/en/attacking-loganalysis.htmlhttp://www.securityfocus.com/bid/25117