cPHulk Brute Force Protection

IEAN.net

Member
May 23, 2003
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0
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aha great I can't login to root WHM getting me

Brute Force Protection
This account is currently locked out because a brute force attempt was detected. Please wait 10 minutes and try again. Attempting to login again will only increase this delay. If you frequently experience this problem, we recommend having your username changed to something less generic.
 

cPanelNick

Administrator
Staff member
Mar 9, 2015
3,481
35
208
cPanel Access Level
DataCenter Provider
aha great I can't login to root WHM getting me

Brute Force Protection
This account is currently locked out because a brute force attempt was detected. Please wait 10 minutes and try again. Attempting to login again will only increase this delay. If you frequently experience this problem, we recommend having your username changed to something less generic.


ssh in as root and run

Code:
mysql cphulkd
mysql> delete from brutes;
mysql> delete from logins;
 

mccwho

Member
Nov 23, 2006
6
0
151
cphaulk not blocking.

cphaulk is enabled but in my logs I still see hunderds of attempts to gain access via ssh. Whats up with that?

here is my settings;

IP Based Brute Force Protection Period in minutes: 15
Brute Force Protection Period in minutes: 5
Maximum Failures By Account: 15
Maximum Failures Per IP: 8
Maximum Failures Per IP before IP is blocked for two week period: 30
Extend account lockout time upon additional authentication failures: checked
Send notification when brute force user is detected: checked


Thanks in advance for your help.
 

bmcpanel

Well-Known Member
Jun 1, 2002
545
0
316
cphaulk is enabled but in my logs I still see hunderds of attempts to gain access via ssh. Whats up with that?

here is my settings;

IP Based Brute Force Protection Period in minutes: 15
Brute Force Protection Period in minutes: 5
Maximum Failures By Account: 15
Maximum Failures Per IP: 8
Maximum Failures Per IP before IP is blocked for two week period: 30
Extend account lockout time upon additional authentication failures: checked
Send notification when brute force user is detected: checked


Thanks in advance for your help.
In addition to intrusion detection, why not take advantage of /etc/hosts.deny to allow ssh only to your known ips. Hackers cannot brute force login attack when the ssh server will not even respond to them.

### /etc/hosts.deny ####
in.telnetd: ALL
sshd:ALL

### /etc/hosts.allow ####
sshd: 22.221.33.190 # Your IP Number (Example)
sshd: 22.221.33.195 # Your Backup IP Number (Example)
sshd: .coastalnow.net # Your isp url
 

aarmstrong

Member
Jun 14, 2004
18
0
151
What does this check?

I enabled this feature today and I am trying to determine what sort of Brute Force attempts it actually blocks? The process is running but my logs are getting hammered with an FTP brute force attack that this seems to be doing nothing to stop.

Oct 4 10:04:56 cpanel2 last message repeated 10 times
Oct 4 10:04:57 cpanel2 pure-ftpd: ([email protected]) [ERROR] Too many authentication failures
Oct 4 10:04:58 cpanel2 pure-ftpd: ([email protected]) [INFO] New connection from 220.191.204.237
Oct 4 10:04:59 cpanel2 pure-ftpd: ([email protected]) [WARNING] Authentication failed for user [Administrator]
Oct 4 10:04:59 cpanel2 pure-ftpd: ([email protected]) [WARNING] Authentication failed for user [Administrator]
Oct 4 10:05:04 cpanel2 pure-ftpd: ([email protected]) [ERROR] Too many authentication failures
Oct 4 10:05:05 cpanel2 pure-ftpd: ([email protected]) [INFO] New connection from 220.191.204.237

Does it seem crazy to me to add a brute force detector but to ignore FTP brute force attempts?
 

aarmstrong

Member
Jun 14, 2004
18
0
151
VersionL
WHM 11.2.0 cPanel 11.11.0-S16999

It appears to be doing something as it shows stuff on the status page:

xxx.xxx.xxx.xxx 3 login failures attempts to account Administrator (system) 2007-10-04 10:12:47 2007-10-04 10:17:47


I do not see the IP that is brute forcing my FTP though.
 

gmm6797

Member
Jan 19, 2004
9
0
151
Can anyone describe the details that cause the brute (not the concept, that is understood) lock and how cpanel defines it?

What log(s) is being monitored What are the criteria to lock (is it some of all of the cPanel settingse for the hulk)? etc.?

Thanks
 

cPanelDavidG

Technical Product Specialist
Nov 29, 2006
11,212
13
313
Houston, TX
cPanel Access Level
Root Administrator
Can anyone describe the details that cause the brute (not the concept, that is understood) lock and how cpanel defines it?

What log(s) is being monitored What are the criteria to lock (is it some of all of the cPanel settingse for the hulk)? etc.?

Thanks
cPHulk handles all system logins rather than checking log files once enabled. You can set the thresholds for cPHulkD in WHM -> Security -> Security Center -> cPHulk Brute Force Protection.
 

Todd Mitchell

Well-Known Member
Staff member
Nov 13, 2006
301
1
243
Houston, TX
As David mentioned, cPHulk doesn't monitor a specific set of logs. When enabled, a pam module is loaded and all pam authentications are passed through the cphulk pam module where the login is logged and matched against any previous logs within the cphulkd database.
 

gmm6797

Member
Jan 19, 2004
9
0
151
...cPHulk doesn't monitor a specific set of logs. When enabled, a pam module is loaded and all pam authentications are passed through the cphulk pam module where the login is logged and matched against any previous logs within the cphulkd database.
OK, so there is a set of data it collects and monitors in a "database" where is that located? It is something accessible to server administrators?

Thank You!
 

Todd Mitchell

Well-Known Member
Staff member
Nov 13, 2006
301
1
243
Houston, TX
The database is a standard mysal database named 'cphulkd'. You can view this using the mysql interface or phpmyadmin through WHM.
 

ispro

Well-Known Member
Verifed Vendor
Apr 8, 2004
628
2
168
We have Remote MySQL setup at cPanel and cPHulk doesn't work:

Oct 23 04:16:35 serverhostname authdaemond: Error when connecting to cphulkd: 400 Unable to connect to database backend: Failed to connect to mysql db: cphulkd

Our cPanel version is 11.15.0-CURRENT_17700

I understand it means that it is trying to connect to database cphulkd which doesn't exist on remote MySQL server. But how to force its creation properly?..
 

ispro

Well-Known Member
Verifed Vendor
Apr 8, 2004
628
2
168
P.S. As of now we can't neither disable nor enable cPHulk because of this.
 

Todd Mitchell

Well-Known Member
Staff member
Nov 13, 2006
301
1
243
Houston, TX
The cPHulkd database is setup during installation by /usr/local/cpanel/bin/hulkdsetup

You may want to run this script again as it should connect to the remote database thats configured on the server and configure the db as needed.
 

staylor

Member
Aug 29, 2007
19
0
51
What is csf+lfd? I am more than certain my ignorance means I do not have it installed. Since all of you seem to have it installed I am highly interested in knowing what it is. Can it be installed in WHM?
 
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