Code injection

DenyHosts 2.6 processes OpenSSH sshd "not listed in AllowUsers" log messages with an incorrect regular expression that does not match an IP address, which might allow remote attackers to avoid detection and blocking when making invalid login attempts with a username not present in AllowUsers, as...

CVE-2007-5715

DenyHosts 2.6 processes OpenSSH sshd "not listed in AllowUsers" log messages with an incorrect regular expression that does not match an IP address, which might allow remote attackers to avoid detection and blocking when making invalid login attempts with a username not present in AllowUsers, as...

CVE-2007-5715

DenyHosts 2.6 is vulnerable due to an incorrect regular expression used to parse failed SSH login attempts, which may allow remote attackers to evade detection/block when attempting logins with a username not present in AllowUsers (the issue demonstrated using the root username). Affected impleme...

CVE-2007-5715

DenyHosts 2.6 processes OpenSSH sshd "not listed in AllowUsers" log messages with an incorrect regular expression that does not match an IP address, which might allow remote attackers to avoid detection and blocking when making invalid login attempts with a username not present in AllowUsers, as...

GLSA-200710-14 : DenyHosts: Denial of Service

The remote host is affected by the vulnerability described in GLSA-200710-14 DenyHosts: Denial of Service Daniel B. Cid discovered that DenyHosts used an incomplete regular expression to parse failed login attempts, a different issue than GLSA 200701-01. Impact : A remote unauthenticated attacker...

DenyHosts: Denial of service

Background DenyHosts is designed to monitor SSH servers for repeated failed login attempts. Description Daniel B. Cid discovered that DenyHosts used an incomplete regular expression to parse failed login attempts, a different issue than GLSA 200701-01. Impact A remote unauthenticated attacker can...

Design/Logic Flaw

DenyHosts 2.6 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...

CVE-2007-4323

DenyHosts 2.6 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...

CVE-2007-4323

DenyHosts 2.6 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...

CVE-2007-4323

DenyHosts 2.6 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...

CVE-2007-4323

CVE-2007-4323 affects DenyHosts 2.6 and is triggered by improper parsing of sshd log files, allowing a remote attacker to cause a denial of service by adding arbitrary IP addresses to /etc/hosts.deny through log content that includes an IP address string. The description does not specify a vendor...

[SECURITY] Fedora 7 Update: denyhosts-2.6-5.fc7

DenyHosts is a Python script that analyzes the sshd server log messages to determine which hosts are attempting to hack into your system. It also determines what user accounts are being targeted. It keeps track of the frequency of attempts from each host and, upon discovering a repeated attack...

Remote log injection on DenyHosts, Fail2ban and BlockHosts

Hi List, DenyHosts, Fail2ban and BlockHosts are vulnerable to remote log injection that can lead to arbitrarily injection of IP addresses in /etc/hosts.deny. To make it more "interesting", not only IP addresses can be added, but also the wild card "all", causing it to block the whole Internet out...

GLSA-200701-01 : DenyHosts: Denial of Service

The remote host is affected by the vulnerability described in GLSA-200701-01 DenyHosts: Denial of Service Tavis Ormandy of the Gentoo Linux Security Audit Team discovered that DenyHosts used an incomplete regular expression to parse failed login attempts. Impact : A remote unauthenticated attacke...

DenyHosts: Denial of service

Background DenyHosts is designed to monitor SSH servers for repeated failed login attempts. Description Tavis Ormandy of the Gentoo Linux Security Audit Team discovered that DenyHosts used an incomplete regular expression to parse failed login attempts. Impact A remote unauthenticated attacker ca...

CVE-2006-6301

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...

CVE-2006-6301

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...

CVE-2006-6301

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...

CVE-2006-6301

CVE-2006-6301 affects DenyHosts 2.5, which mishandles sshd log parsing. An attacker can remotely cause denial of service by injecting arbitrary IP addresses into /etc/hosts.deny through crafted log content, exploiting an inadequate regular expression to parse SSH login attempts. The vulnerability...

CVE-2006-6301

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...