rpcclient enumeration oscp

Cannot retrieve contributors at this time. I create my own checklist for the first but very important step: Enumeration. dfsexist Query DFS support This detail includes the path of the share, remarks, it will indicate if the share has a password for access, it will tell the number of users accessing the share and what kind of access is allowed on the share. Server Message Block in modern language is also known as Common Internet File System. Obviously the SIDS are different but you can still pull down the usernames and start bruteforcing those other open services . | Type: STYPE_DISKTREE SegFault:~ cg$rpcclient -U "" 192.168.182.36 The RPC service works on the RPC protocols that form a low-level inter-process communication between different Applications. |_smb-vuln-ms10-054: false |_ https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/ Enum4linux is a Linux alternative to enum.exe and is used to enumerate data from Windows and Samba hosts. # lines. rpcclient is a part of the Samba suite on Linux distributions. Hashes work. result was NT_STATUS_NONE_MAPPED This is an approach I came up with while researching on offensive security. createdomuser Create domain user oncybersec/oscp-enumeration-cheat-sheet - Github | Remote Code Execution vulnerability in Microsoft SMBv1 servers (ms17-010) Query Group Information and Group Membership. 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. Obviously the SIDS are different but you can still pull down the usernames and start bruteforcing those other open services. Assumes valid machine account to this domain controller. rpcclient $> enumprivs Code execution don't work. LEWISFAMILY Wk Sv PrQ Unx NT SNT Mac OS X In the demonstration, it can be observed that the current user has been allocated 35 privileges. Host script results: -i, --scope=SCOPE Use this Netbios scope, Authentication options: Host is up (0.030s latency). rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1013 Try "help" to get a list of possible commands. The manipulation of the groups is not limited to the creation of a group. dfsgetinfo Query DFS share info Using rpcclient we can enumerate usernames on those OS's just like a windows OS. lsaremoveacctrights Remove rights from an account queryaliasmem Query alias membership getprintprocdir Get print processor directory What permissions must be assigned to the newly created directories? See the below example gif. rpcclient enumeration - HackTricks 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). -V, --version Print version, Connection options: 135, 593 - Pentesting MSRPC - HackTricks . However, for this particular demonstration, we are using rpcclient. On other systems, youll find services and applications using port 139. shutdown Remote Shutdown In this article, we are going to focus on the enumeration of the Domain through the SMB and RPC channels. 548 - Pentesting Apple Filing Protocol (AFP) 554,8554 - Pentesting RTSP. This problem is solved using lookupnames whereupon providing username the SID of that particular user can be extracted with ease. After that command was run, rpcclient will give you the most excellent "rpcclient> " prompt. SMB2 Windows Vista SP1 and Windows 2008, crackmapexec -u 'guest' -p '' --shares $ip, crackmapexec -u 'guest' -p '' --rid-brute 4000 $ip, crackmapexec -u 'guest' -p '' --users $ip, crackmapexec smb 192.168.1.0/24 -u Administrator -p, crackmapexec smb 192.168.1.0/24 -u Administrator -H E52CAC67419A9A2238F10713B629B565:64F12CDDAA88057E06A81B54E73B949B, crackmapexec -u Administrator -H E52CAC67419A9A2238F10713B629B565:64F12CDDAA88057E06A81B54E73B949B -M mimikatz 192.168.1.0/24, crackmapexec -u Administrator -H E52CAC67419A9A2238F10713B629B565:64F12CDDAA88057E06A81B54E73B949B -x whoami $ip, crackmapexec -u Administrator -H E52CAC67419A9A2238F10713B629B565:64F12CDDAA88057E06A81B54E73B949B --exec-method smbexec -x whoami $ip# reliable pth code execution. dsroledominfo Get Primary Domain Information A Little Guide to SMB Enumeration - Hacking Articles 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. 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. The command to be used to delete a group using deletedomgroup. That command reveals the SIDs for different users on the domain. | A critical remote code execution vulnerability exists in Microsoft SMBv1 rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2003 smbmap -H [ip/hostname] will show what you can do with given credentials (or null session if no credentials). My #1 SMB tip: if the exploit you're using fails despite the target appearing vulnerable, reset the machine and try again. This is an enumeration cheat sheet that I created while pursuing the OSCP. SeSecurityPrivilege 0:8 (0x0:0x8) You signed in with another tab or window. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1014 Are you sure you want to create this branch? Windows NT, 2000, and XP (most SMB1) - VULNERABLE: Null Sessions can be created by default If the permissions allow, an attacker can delete a group as well. Microsoft Remote Procedure Call, also known as a function call or a subroutine call, is a protocol that uses the client-server model in order to allow one program to request service from a program on another computer without having to understand the details of that computer's network. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1009 IS~[hostname] <00> - M With --pw-nt-hash, the pwd provided is the NT hash, #Use --no-pass -c 'recurse;ls' to list recursively with smbclient, #List with smbmap, without folder it list everything. [+] User SMB session establishd on [ip] netname: PSC 2170 Series rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2002 SMB2 Windows Vista SP1 and Windows 2008, nmap -n -v -Pn -p139,445 -sV 192.168.0.101, smbclient -L \\$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 $ip -s wwwroot -R -A '. Hydra v5.1 (c) 2005 by van Hauser / THC - use allowed only for legal purposes. queryuser Query user info What permissions must be assigned to the newly created files? The next command that can be used is enumalsgroups. 1. SMB stands for Server Message Blocks. MSRPC was originally derived from open source software but has been developed further and copyrighted by . This command was able to enumerate two specific privileges such as SeChangeNotiftyPrivielge and SeNetworkLogonRight privilege. Author: Pavandeep Singhis a Technical Writer, Researcher, and Penetration Tester. For this particular demonstration, we will first need a SID. Might ask for password. When it was passed as a parameter in the command lookupsids, the attacker was able to know that this belongs to the group Everyone. getprinter Get printer info 139/tcp open netbios-ssn enumalsgroups Enumerate alias groups platform_id : 500 --usage Display brief usage message, Common samba options: C$ Disk Default share path: C:\tmp OSCP Enumeration Cheat Sheet. 1433 - Pentesting MSSQL - Microsoft SQL Server. 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. C$ NO ACCESS In this lab, it is assumed that the attacker/operator has gained: The below shows a couple of things. getform Get form 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. These commands can enumerate the users and groups in a domain. The next command to observe is the lsaquerysecobj command. MAC Address: 00:50:56:XX:XX:XX (VMware) if IPC$ share is enabled , and have anonymous access we can enumerate users through, SAMBA 3.x-4.x # vulnerable to linux/samba/is_known_pipename, SAMBA 3.5.11 # vulnerable to linux/samba/is_known_pipename, good script to use if none of scanner giving version for smb, # 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. Code Execution. . This information includes the Group Name, Description, Attributes, and the number of members in that group. #rpcclient $>srvinfo #rpcclient $>enumdomusers #rpcclient $>querydominfo #rpcclient $>getdompwinfo //password policy #rpcclient $>netshareenum #nmblookup -A 192.168.1.1 | Current user access: A Mind Map about OSCP Guide submitted by Rikunj Sindhwad on Jun 12, 2021. setprintername Set printername In general, the rpcclient can be used to connect to the SMB protocol as well. Let's see how this works by firstly updating the proxychains config file: {% code-tabs %} querygroup Query group info rpcclient -U '%' -N <IP> Web-Enum . Using rpcclient we can enumerate usernames on those OSs just like a windows OS. [DATA] attacking service smb on port 139 We can filter on ntlmssp.ntlmv2_response to see NTLMv2 traffic, for example. 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. querygroupmem Query group membership SeTakeOwnershipPrivilege 0:9 (0x0:0x9) -?, --help Show this help message .. D 0 Thu Sep 27 16:26:00 2018 Disk Permissions sourcedata Source data setdriver Set printer driver schannelsign Force RPC pipe connections to be signed (not sealed) with 'schannel' (NETSEC). Enumerating Windows Domains with rpcclient through SocksProxy 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. found 5 privileges, SeMachineAccountPrivilege 0:6 (0x0:0x6) We will shine the light on the process or methodology for enumerating SMB services on the Target System/Server in this article. The ability to interact with privileges doesnt end with the enumeration regarding the SID or privileges. password: Allow connecting to the service without using a password? At last, it can be verified using the enumdomusers command. -O, --socket-options=SOCKETOPTIONS socket options to use If you're having trouble getting the version from the usual methods, you might have to use wireshark or tcpdump to inspect the packets. logonctrl Logon Control | Type: STYPE_DISKTREE --------------- ---------------------- Password attack (Brute-force) Brute-force service password. RID is a suffix of the long SID in a hexadecimal format. Test. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-501 samlookuprids Look up names Chapter 2 - Recon & Enumeration - oscp It accepts the group name as a parameter. rewardone in the PWK forums posted a neat script to easily get Samba versions: When you run this on a box running Samba, you get results: When in doubt, we can check the smb version in PCAP. To do this first, the attacker needs a SID. Port_Number: 137,138,139 #Comma separated if there is more than one. New Folder (9) D 0 Sun Dec 13 05:26:59 2015 To enumerate a particular user from rpcclient, the queryuser command must be used. If these kinds of features are not enabled on the domain, then it is possible to brute force the credentials on the domain. [STATUS] 29.00 tries/min, 29 tries in 00:01h, 787 todo in 00:28h May need to run a second time for success. --------------- ---------------------- and therefore do not correspond to the rights assigned locally on the server. S-1-5-21-1835020781-2383529660-3657267081-1001 LEWISFAMILY\wheel (2) The name is derived from the enumeration of domain users. deldriver Delete a printer driver Impacket, 1a3487d42adaa12332bdb34a876cb7e6:1a3487d42adaa12332bdb34a876cb7e6 query.

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