CVE Vulnerability

CVE-2007-4321

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.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

References
Link Resource
http://www.ossec.net/en/attacking-loganalysis.html
http://security.gentoo.org/glsa/glsa-200707-13.xml
http://www.debian.org/security/2008/dsa-1456
http://bugs.gentoo.org/show_bug.cgi?id=181214
http://www.securityfocus.com/bid/25117
http://secunia.com/advisories/23237
http://secunia.com/advisories/28374
http://osvdb.org/42484
Configurations

Configuration 1

cpe:2.3:a:fail2ban:fail2ban:0.8:*:*:*:*:*:*:*
Information

Published : 2007-08-14 12:17

Updated : 2012-10-31 02:41

NVD link : CVE-2007-4321

Mitre link : CVE-2007-4321

Products Affected
No products.
CWE
NVD-CWE-Other