Showing posts with label enumeration. Show all posts
Showing posts with label enumeration. Show all posts
Friday, April 14, 2017
LinEnum Local Linux Enumeration Privilege Escalation Checks
LinEnum Local Linux Enumeration Privilege Escalation Checks
LinEnum will automate many of the checks that I’ve documented in the Local Linux Enumeration & Privilege Escalation Cheatsheet. It’s a very basic shell script that performs over 65 checks, getting anything from kernel information to locating possible escalation points such as potentially useful SUID/GUID files and Sudo/rhost mis-configurations and more.
An additional ‘extra’ feature is that the script will also use a provided keyword to search through *.conf and *.log files. Any matches will be displayed along with the full file path and line number on which the keyword was identified.
After the scan has completed (please be aware that it make take some time) you’ll be presented with (possibly quite extensive) output, to which any key findings will be highlighted in yellow with everything else documented under the relevant headings.
Below is a high-level summary of the checks/tasks performed by LinEnum:
- Kernel and distribution release details
- System Information:
- Hostname
- Networking details:
- Current IP
- Default route details
- DNS server information
- User Information:
- Current user details
- Last logged on users
- Llist all users including uid/gid information
- List root accounts
- Extract full details for ‘default’ uid’s such as 0, 1000, 1001 etc
- Attempt to read restricted files i.e. /etc/shadow
- List current users history files (i.e .bash_history, .nano_history etc.)
- Privileged access:
- Determine if /etc/sudoers is accessible
- Determine if the current user has Sudo access without a password
- Are known ‘good’ breakout binaries available via Sudo (i.e. nmap, vim etc.)
- Is root’s home directory accessible
- List permissions for /home/
- Environmental:
- Display current $PATH
- Jobs/Tasks:
- List all cron jobs
- Locate all world-writable cron jobs
- Locate cron jobs owned by other users of the system
- Services:
- List network connections (TCP & UDP)
- List running processes
- Lookup and list process binaries and associated permissions
- List inetd.conf/xined.conf contents and associated binary file permissions
- List init.d binary permissions
- Version Information (of the following):
- Sudo
- MYSQL
- Postgres
- Apache
- Default/Weak Credentials:
- Checks for default/weak Postgres accounts
- Checks for default root/root access to local MYSQL services
- Searches:
- Locate all SUID/GUID files
- Locate all world-writable SUID/GUID files
- Locate all SUID/GUID files owned by root
- Locate ‘interesting’ SUID/GUID files (i.e. nmap, vim etc)
- List all world-writable files
- Find/list all accessible *.plan files and display contents
- Find/list all accesible *.rhosts files and display contents
- Show NFS server details
- Locate *.conf and *.log files containing keyword supplied at script runtime
- List all *.conf files located in /etc
- Locate mail
Some of the above commands are privileged/and or the related task may be nonexistent and will therefore most likely fail. The user shouldn’t be alerted to failed results, just the output from successful commands should be displayed.
Download LinEnum
Go to link download
Saturday, March 25, 2017
Osueta A simple Python script to exploit the OpenSSH User Enumeration Timing Attack
Osueta A simple Python script to exploit the OpenSSH User Enumeration Timing Attack
Osueta its a simple Python2 script to exploit the OpenSSH User Enumeration Timing Attack, present in OpenSSH versions 5.* and 6.*. The script has the ability to make variations of the username employed in the bruteforce attack, and the possibility to establish a DOS condition in the OpenSSH server.
usage: osueta.py [-h] [-H HOST] [-k HFILE] [-f FQDN] [-p PORT] [-L UFILE]
[-U USER] [-d DELAY] [-v VARI] [-o OUTP] [-l LENGTH]
[-c VERS] [--dos DOS] [-t THREADS]
OpenSSH User Enumeration Time-Based Attack Python script
optional arguments:
-h, --help show this help message and exit
-H HOST Host Ip or CIDR netblock.
-k HFILE Host list in a file.
-f FQDN FQDN to attack.
-p PORT Host port.
-L UFILE Username list file.
-U USER Only use a single username.
-d DELAY Time delay fixed in seconds. If not, delay time is calculated.
-v VARI Make variations of the username (default yes).
-o OUTP Output file with positive results.
-l LENGTH Length of the password in characters (x1000) (default 40).
-c VERS Check or not the OpenSSH version (default yes).
--dos DOS Try to make a DOS attack (default no).
-t THREADS Threads for the DOS attack (default 5).Download Osueta
Go to link download
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