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Questions tagged [audit]

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0
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1answer
25 views

how to extracting only few records from audit.log

How to Extract audit.log While starting auditd service in linux it records all executed commands as exepected but in addition it records the background process too (the commands which is not executed ...
1
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2answers
104 views

Understanding the audit log - file permissions and file content changed

I need to understand the log below, my index.php got obfuscated code, and file permissions changed from 644 to 755 as well. I've got something in my audit but can't really tell what and how it ...
0
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1answer
34 views

Tracking all file changes in a unix host

I'm evaluating a tool and I need to identify all files (including system config files) added, changed or removed by this application (it is installed using pip). After installing on a external host, ...
2
votes
1answer
74 views

How to log failure to start/stop a service?

I want to track whether a normal user attempted to run a service. The command for starting/stopping service is given as below: service filebeat start I wrote an auditd rule like below: -w /usr/sbin/...
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0answers
24 views

Tracing writes to files and devices

I would like to audit writes to a specific file (like /home/john/file.txt) and/or a specific device (like /dev/tty/1). How to do it? By audit I mean: What was written by process? Solution based on ...
1
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0answers
23 views

Freeze Linux when log is full

Is it possible to configure a Linux server to stop all operations when it cannot create logs, similar to the security policy in Windows called "Audit: Shut down system immediately if unable to log ...
0
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1answer
72 views

check auditd version

Is there a better/more proper way to check auditd's version on Linux machine than to check it as part of the installed program name? For instance on Ubuntu in run /usr/bin/dpkg-query -W --showformat '...
0
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0answers
69 views

'auditctl -l' output is different between different auditd version

I need to match a regex against the output of 'auditctl -l' command. From the several checks I conducted I saw a difference in output convention writing in different audit versions (for the same audit ...
1
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1answer
36 views

What is the purpose of auditctl -a never,task?

I see that whenever I start a new ec2 server the default rule for auditctl is auditctl -a never,task What is the purpose of having this rule?
0
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1answer
151 views

Getting error when stopping auditd

I have recently made changes to my audit.rules file on a 32bit RHEL 6.9 machine and I know that since the end of the file has -e 2 to make the file immutable a reboot is required for the new rules to ...
2
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1answer
75 views

Audit file modifications over ssh in Linux

I wanted to monitor all the modifications made to file in Linux server On some research I found audit tool which I have installed and configured using following commands yum install audit # ...
1
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1answer
128 views

Encryption of syslog & auditd in local disk? [closed]

We need to use encrypted syslog and auditd in local disk. Is it possible to save syslog and auditd message encrypted in disk ?
1
vote
2answers
26 views

servresolv.conf become blank when system is running

I use dhcpcd to manage this file. First, start dhcpcd service, and the file has something with namesever. All things can be done correctly. But this file will become blank after a while. I try ...
0
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1answer
41 views

How is source code reviewed/audited, prior to inclusion in linux mainline?

An answer to this question would provide insight and references about how the linux kernel source code is reviewed prior to be released? Particular interesting aspect of this question to me are: Who ...
1
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0answers
50 views

AIX auditpr timestamp format

Is there a way to customize the timestamp format that the auditpr command on AIX generates? I am logging to binary, and when I use auditpr to read the binary audit logs, I get something similar to : ...
1
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0answers
77 views

Why ausearch does not find matches for SYSTEM_BOOT and SYSTEM_SHUTDOWN?

I ask myself why I get no matches when I search for SYSTEM_BOOT or SYSTEM_SHUTDOWN. ausearch -m SYSTEM_BOOT ausearch -m SYSTEM_SHUTDOWN To be sure that events are not getting lost during booting I ...
1
vote
1answer
211 views

What is the Windows equivalent of 'Audit log cleared' event in Unix/Linux?

Windows has EventID 1102 "The audit log was cleared". What is the equivalent audit event in Unix/Linux? If someone has a sample event, and know what audit policy needs to be configured to get this ...
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0answers
117 views

Hostname in the audit reports not shown

I'm creating a nfs share. Also i configured auditd to combine the logs to a centralized server. I configured audisp-remote as per the instructions in the link: https://luppeng.wordpress.com/2016/08/...
3
votes
1answer
291 views

How to decode audit logs

I'm auditing the files in a nfs share. When I look at the audit logs using the command ausearch -f /var/nfs/general , I get some logs that looks like this: time->Tue Jun 12 16:23:34 2018 type=...
0
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1answer
261 views

Difference between Failed Authentications and Failed Logins in aureport [closed]

Lately I've been exploring the aureport tool, but I've noticed the following in the outputs and behavior of it. For example, running the following command: # aureport --failed Displays the ...
0
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1answer
59 views

aureport -l doesnt show the sucessful count of the user who used “su” command

why the command aureport -l --success --summary -i does show the successful login count of the user who used su command. The output the above said command only calculates sshd, gdm sessions but not ...
0
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0answers
32 views

AIX Logging Configurations

I would like monitor specific/target files and directories on AIX server by enabling audit on only those files and directories without enabling global file and directory auditing. The specific files ...
0
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1answer
90 views

How to install audit2allow on Alpine Linux 3.5?

I am coming from an apt-get background and am now trying (and failing) to use Alpine Linux's apk utility for package management. I try running apk install audit2allow and end up with a help message ...
1
vote
1answer
42 views

Fastest way to locate any files/dirs with different ACLs than parent? (FreeBSD)

As the question says. I have a data pool with ~ 10M files with access controlled by NFSv4 ACLs. It's usable from CLI, Samba, sometimes by daemon processes or rsync, and for some dirs by ftp/sftp, so ...
0
votes
1answer
133 views

Logger -f command killed opening /var/log/messages in tail

I'm trying to run this command on CentOS. logger -t AUDIT_LOG -f <MY_AUDIT_LOG_FILE> & It works correctly for 10/20 seconds. Opening /var/log/messages in tail I can correctly see messages ...
1
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0answers
66 views

Shell command audit for a single user

What is the easiest way to log all the commands ran in the all different shells (bash, zsh...) by a certain user to a file, syslog or somewhere else?
0
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0answers
31 views

Is there a way to log attempts to change a file in RHEL6?

We have a RHEL6 server that was built using an old homegrown build platform. The team that built the platform was disbanded, and all members have moved on. So, we are trying to figure out everything ...
3
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0answers
163 views

Can aureport show the full path to files?

I'm tailing auditd.log and piping it into ausearch and then aureport, with the aim of getting a simple stream of modified files: tail -f /var/log/audit/audit.log | ausearch -k my_key | aureport -f --...
4
votes
1answer
117 views

Changes made with chattr are not detected by auditd

I want to monitor a particular directory using auditd, so that any changes are logged. I've created a rule using: auditctl -w /etc/my_path_to_monitor -p wa -k my_rule This works great for everything ...
7
votes
2answers
1k views

List all programs used by a shell script

I'm trying to figure out a method to list all the programs that a script will use when it will be run, without actually running it. I've written these quick and dirty oneliners: # fill an array with ...
0
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1answer
95 views

How to enable audit on access to files (rwx) in SLES9

How can I enable audit on access to specific files in Suse Linux Enterprise 9?
1
vote
1answer
303 views

How do I interpret audit message logged during shutdown? [closed]

My machine (RHEL 7.4) is hanging during shutdown and displaying the following audit message: type=1300 audit(1503569606.186:27573): arch=c000003e syscall=2 sucess=no exit=-13 a0=7ffee8a3db90 a1=2 a2=...
0
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2answers
982 views

Configuring Solaris 11 Audit

Recently I was working trying to activate the solaris audit service to record logs and write them in a single file in /var/adm/auditlog. The thing is, I was trying to find some useful info about it ...
1
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0answers
138 views

autrace - Does it call auditctl or not?

The autrace man page summary is a little confusing: This command deletes all audit rules prior to executing the target program and after executing it. As a safety precaution, it will not run ...
1
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0answers
275 views

Enabling custom auditd logging in RedHat

I enabled the auditd service using the following configuration to trace all user activities (belonging to group ID 555) on RedHat OS: vim /etc/audit/audit.rules -a always,exit -F gid=555 -F arch=b64 -...
3
votes
1answer
43 views

BSM and memory usage

Currently have BSM installed on my solaris 10 on my virtual machine. What I'm trying to do is that I want to measure the impact of enabling BSM (auditing) on Solaris on the CPU, memory. So after ...
1
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0answers
70 views

Why does this `aureport` show a question mark in the 'exe' field?

I'm trying to debug why my docker socket changes ownership on a weekly basis. I created an audit log rule on /var/run/docker.sock. The audit report shows me many events happening to that socket, but ...
1
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0answers
62 views

Audit a command with a parameter under Linux

I want to use audit function of Linux to audit a Linux command date -s. If I write -w /bin/date -p x -k system-call in audit.rules, it will record when I use the command date. But I don't want it to ...
3
votes
1answer
341 views

Every AD SSH login starts with a failure in audit.log

Whenever I login to my Centos 7.x server I always get a transparent failure in the audit.log. This is making my attempts to have a daily script for failed logins very difficult as we can't be sure ...
4
votes
1answer
340 views

linux audit events not passed to go-audit

We're attempting to use slack's go-audit tool to capture/process linux audit events. More info: https://github.com/slackhq/go-audit The issue is that the linux audit is correctly picking up events, ...
1
vote
2answers
134 views

Viewing relevant information about file accesses from the audit log

Assume, you have a Linux machine and there are three users - user1, user2 and user3, who can log in to the machine. You created a rule $ auditctl -w /etc/file.txt -p rwxa If you would like to see ...
5
votes
0answers
344 views

How to capture the xtrace output (only) in a file?

I know that I can redirect the xtrace output to some_file with something like this: exec 2 >> some_file set +x ...but this sends to some_file not only the xtrace output, but also any other ...
0
votes
1answer
568 views

HPUX 11i v3 Auditing to a syslog server - Configuration

I had trouble setting up auditing on our HPUX system and sending the same to a SIEM solution as a multiline log. The issue was that audsys writes the log to binary files and I need it to be setup in ...
1
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2answers
82 views

Monitor accesses to directory on a Linux machine [duplicate]

How would you monitor a directory on a Linux machine to check if there was a user (or someone from the network) who attempted to access it?
1
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0answers
68 views

How do you block a specific process (such as vim) from accessing a mounted disk?

If I have a disk mounted on my hard-drive, I want to be able to block all but specific processes from having read/write access to that disk. Currently, I'm thinking the best way is to audit the disk ...
1
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0answers
32 views

Audit is not watching /mnt/foo on RHEL4

======New info ===== On my RHEL4 system, auditctl is failing to watch only when something is mounted via the mount command. The same directory works fine when it is unmounted. The version of audit is ...
2
votes
2answers
105 views

What does undocumented “proto” command line argument do in auditdistd on FreeBSD?

As you might know there is an auditdistd(8) daemon available on FreeBSD. It has some documented command line arguments like -c, -d, etc. (see more here (link)). I was trying to learn how it works ...
1
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2answers
897 views

Monitor which application generate ICMP/ping traffic

​ I'm having problem with this, Something in my system (Linux/Fedora 24/x64) keep sending ping's to several IP address, and i like to know which process is responsible for this. I found several ...
2
votes
1answer
268 views

How to monitor syscalls being called by a user on FreeBSD using auditing?

I would like to monitor every syscall being called on my FreeBSD using auditd. I know it is possible on Linux but I cannot find any information on how I should configure FreeBSD. Is it even possible ...
2
votes
1answer
214 views

Reporting Seccomp violations

When running seccomp-constrained processes, I would like to see any seccomp violations in some logs. Some googling online shows that these violations are reported to either syslog or audit.log. ...