---
# System prepended metadata

title: S2G OSINT and Forensics CTF Writeups 191022

---

# S2G OSINT and Forensics CTF Writeups 191022
## Barrier
### Description
What is the the length of the road behind the barrier, according to NVDB?

The answer should include 3 decimal points without units.
![](https://i.imgur.com/M06mvWN.jpg)

### Solution
On the sign on the right hand side, we can see we are 4 kilometers in on Fylkesvei 184. Using this information, in addition with the visible information in the image, we can locate the possible roads on the map, and narrow it down to the correct spot.
![](https://i.imgur.com/Bpl8GIy.jpg)
![](https://i.imgur.com/yRQDcEb.jpg)

We can also verify the location in Google Streetview, with the given image, before continuing to find the road length. 
![](https://i.imgur.com/oClDAxo.jpg)

Having confirmed the location, we can find the road in Statens vegvesen's vegkart (road map). Enabling "Vis i kart" will allow us to select the roads on the map, to show additional information, including the precise length. 
![](https://i.imgur.com/IB85O69.jpg)

On the right hand side, we can see, that the length (lengde) is `98.403`. 
![](https://i.imgur.com/NhetMNj.jpg)

### Flag
```
S2G{98.403}
```



## Cherries
### Description
Geir loves cherries and would like to ask the owner of the tree, if he could get some, but forgot where the picture was taken. He only remembers that it was taken somewhere in Vestre Aker. Can you help him find it? What is the building number (bygningsnummer) of the black house seen in the picture?
![](https://i.imgur.com/l70nJOg.jpg)


### Solution
We have a cherry tree located in Vestre Aker. Bymiljøetaten has a [map of cherry trees](https://www.oslo.kommune.no/natur-kultur-og-fritid/trar-i-oslo/kart-over-trar-i-oslo/) in Oslo, which we can utilize to locate where the picture was taken.
![](https://i.imgur.com/7x9bepW.jpg)

Looking closer, we can see the right location.
![](https://i.imgur.com/8lNzUdX.jpg)

We can confirm the location with Google Street View.
![](https://i.imgur.com/zjtOyEx.jpg)

We can find the building number in Norgeskart.
![](https://i.imgur.com/Y2U5HNi.jpg)

The building number is `80063954`.

### Flag
```
S2G{80063954}
```