General

New csf v6.13

Changes:
– Fixed Server Check for dhclient

New csf v6.12

Changes:
– Added iptables UID logging for dropped outgoing packets
– New feature – DROP_OUT_LOGGING. Enables iptables logging of dropped outgoing connections. Where available, these logs will also include the UID connecting out which can help track abuse. Note: Only outgoing SYN packets for TCP connections are logged. The option is not enabled by default, but we recommend that it is enabled
– Option DROP_ONLYRES now only applies to incoming port connections
– New feature – User ID Tracking. This feature tracks UID blocks logged by iptables to syslog. If a UID generates a port block that is logged more than UID_LIMIT times within UID_INTERVAL seconds, an alert will be sent. Requires DROP_OUT_LOGGING to be enabled
– Modified Port Scan Tracking regexes to ensure only incoming connections are tracked
– Added Server Check for dhclient running
– Added Server Check on cPanel servers for antirelayd
– Added Server Check on for a swap file (don't bother on Virtuozo)
– Added Server Check for xinetd, qpidd, portreserve and rpcbind in Services Check since most people won't use them

New csf v6.11

Changes:
– Fixed SMTP_ALLOWLOCAL not functioning correctly. Added IPv6 support for SMTP_ALLOWLOCAL
– Removed SMTP_BLOCK restriction for IPv6 requiring port 25 to be present in TCP6_OUT

New csf v6.10

Changes:
– New feature – separate Blocklist configuration file to allow for expansion of the available block lists. The following options have been removed from csf.conf and a new csf.blocklists file added to configure blocklists:

New csf v6.09

Changes:
– Modified csf UI to detect Webmin install and symlink script and images directory so as to no longer require Webmin module update on a new csf version
– Tidied up csf UI html
– Fixed System Statistics graph display when using Webmin
– Modified Server Security check to only perform GENERIC test when using Webmin to prevent hanging processes
– Added CLI options –car, –carm. This removes an allowed IP in a Cluster and removes it from /etc/csf.allow
– Added new options LF_WEBMIN, LF_WEBMIN_PERM. This feature adds login failure detection for Webmin in WEBMIN_LOG
– Added new option LF_WEBMIN_EMAIL_ALERT. This feature sends an email if a successful login to Webmin is detected in WEBMIN_LOG
– Modified LF_SCRIPT_ALERT text in csf.conf for cPanel servers
– Modified proftpd regex to cope with non-standard format and to remove trailing colons from account name
– Modified LF_SCRIPT_ALERT regex to cater for paths containing spaces
– Improvements to LF_SCRIPT_ALERT memory usage and possible script detection
– Added alternative LF_SCRIPT_ALERT regex for specific 1H.com exim logging ACL

New cxs v2.94

Changes:
– Removed a false-postitive fingerprint definition

New cxs v2.93

Changes:
– New features: –prenice [num], –pionice [num]. These options allow you to control the nice and ionice priorities of the running process. This can, for example, help even out the load on heavy IO servers or increase the speed of the scan on busy servers
– Exploit fingerprint definitions database additions

New cxs v2.92

Changes:
– Improvements to the main decoder regex
– Improvements to error reporting on UI restore
– Fixed typo in documentation regarding cxs.xtra :quarantine feature
– Added IP, where available, to –script [script] parameters passed to external script
– Exploit fingerprint definitions database additions

New csf v6.08

Changes:
– Added IPV6_SPI workaround for CentOS/RedHat v5 and custom kernels that do not support IPv6 connection tracking by opening ephemeral port range 32768:61000. This is only applied if IPV6_SPI is not enabled. This is the same workaround implemented by RedHat in the sampe default IPv6 rules

New cxs v2.91

Changes:
– Ensure cxswatch is stopped, disabled and removed on cxs uninstall
– Added cleaned script code scanning to text match and decoder regex detection to improve exploit script detection
– Modified –help to use the POD paginated viewer
– Exploit fingerprint definitions database additions