Start simple. Only have 1 ar configuration on the server to start with (you have 1 for agent 108 and 1 for 109, remove until you have 1 for 1 agent). Also run the agent processes in debug mode, see if there are any useful log messages.
On Mon, Feb 7, 2011 at 10:57 AM, Jeremy Lee <[email protected]> wrote: > ossec-execd is running on the agents. > > The strangest part of all this is that I can successfully issue > `agent-control -u...` and get the null-route command to work manually. But > for some reason it won't work the normal way, even though the relevant rule > ID is getting triggered. > > On Mon, Feb 7, 2011 at 6:33 AM, dan (ddp) <[email protected]> wrote: >> >> On Fri, Feb 4, 2011 at 7:15 PM, jplee3 <[email protected]> wrote: >> > I also tried with <location>all</location> and it did not work. >> > >> > >> > Something I did notice: on the OSSEC server the "/var/ossec/queue/ >> > alerts/ar" file exists while on the agents I'm trying to get this to >> > work on, that file does not exist. Is this the cause of the problem? >> > If so, what would have caused the ar file to go away? And how can I >> > get it back? >> > >> >> That file does not exist on my agents: >> [ddp@junction] :; sudo -s >> # ls -l /var/ossec/queue/alerts/ >> total 0 >> srw-rw---- 1 root ossec 0 Jan 26 22:26 execq >> >> Is ossec-execd running on the agents? Does it work on any agents? >> >> > On Feb 4, 3:02 pm, jplee3 <[email protected]> wrote: >> >> Hey guys, >> >> >> >> I'm not exactly sure what happened but it seems my Active Response >> >> stopped working. I've verified the rule behind the AR gets triggered >> >> and I also manually tested the rule via the agent_control command. >> >> >> >> Here's the configs/logs: >> >> >> >> ossec.conf: >> >> <command> >> >> <name>route-null</name> >> >> <executable>route-null.sh</executable> >> >> <expect>srcip</expect> >> >> <timeout_allowed>yes</timeout_allowed> >> >> </command> >> >> >> >> <active-response> >> >> <command>route-null</command> >> >> <location>defined-agent</location> >> >> <agent_id>108</agent_id> >> >> <rules_id>300042</rules_id> >> >> <timeout>1800</timeout> >> >> </active-response> >> >> >> >> <active-response> >> >> <command>route-null</command> >> >> <location>defined-agent</location> >> >> <agent_id>109</agent_id> >> >> <rules_id>300042</rules_id> >> >> <timeout>1800</timeout> >> >> </active-response> >> >> >> >> alert.log (sanitized): >> >> ** Alert 1296859856.1087142244: mail - local,syslog, >> >> 2011 Feb 04 14:50:56 lxapp5->/nas/logs/attack/attack.log >> >> Rule: 300042 (level 8) -> 'Multiple scripted attack' >> >> Src IP: 192.168.1.45 >> >> User: user2 >> >> [blah blah blah blah blah 192.168.45 blah blah blah user2] >> >> >> >> So the alert is definitely being triggered here... >> >> >> >> To test that AR is functional: >> >> server: >> >> /var/ossec/bin/agent_control -u 109 -b 1.2.3.4 -f route-null1800 >> >> >> >> OSSEC HIDS agent_control: Running active response 'route-null1800' on: >> >> 109 >> >> >> >> agent (active-responses.log): >> >> Fri Feb 4 14:58:29 PST 2011 /var/ossec/active-response/bin/route- >> >> null.sh add - 1.2.3.4 (from_the_server) (no_rule_id) >> >> >> >> So for some reason it seems OSSEC is not paying attention to the >> >> portion of the conf regarding active responses... it might just be a >> >> dumb typo but is there anyway to debug further to find the root cause? >> >> Or does anyone see anything wrong with the snippet of the conf? I also >> >> tried removing "<disabled>no</disabled" to no avail. I have made no >> >> changes to the route-null.sh AR script either. This was all working >> >> previously and I had to stop it due to issues back in January. I just >> >> got back to playing around with this again and it's not working. >> >> >> >> Any ideas? > >
