CVEvulnerability
CVE-2006-6301
5.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2006-12-06
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Description
DenyHosts 2.5 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 login name containing certain strings with an IP address, which is not properly handled by a regular expression.
Affected configurations
• denyhosts denyhosts 2.5
References
- http://bugs.gentoo.org/show_bug.cgi?id=157163 Exploit
- http://secunia.com/advisories/23236 Vendor Advisory
- http://secunia.com/advisories/23603 Vendor Advisory
- http://security.gentoo.org/glsa/glsa-200701-01.xml security.gentoo.org
- http://www.securityfocus.com/bid/21468 www.securityfocus.com
- http://www.vupen.com/english/advisories/2006/4876 www.vupen.com
- https://exchange.xforce.ibmcloud.com/vulnerabilities/30761 exchange.xforce.ibmcloud.com
- http://bugs.gentoo.org/show_bug.cgi?id=157163 Exploit
- http://secunia.com/advisories/23236 Vendor Advisory
- http://secunia.com/advisories/23603 Vendor Advisory
- http://security.gentoo.org/glsa/glsa-200701-01.xml security.gentoo.org
- http://www.securityfocus.com/bid/21468 www.securityfocus.com
- http://www.vupen.com/english/advisories/2006/4876 www.vupen.com
- https://exchange.xforce.ibmcloud.com/vulnerabilities/30761 exchange.xforce.ibmcloud.com