Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/trustedsec/hardcidr
hardCIDR is a Linux Bash script, but also functions under macOS. Your mileage may vary on other distros. The script with no specified options will query ARIN and a pool of BGP route servers. The route server is selected at random at runtime.
https://github.com/trustedsec/hardcidr
Last synced: 2 days ago
JSON representation
hardCIDR is a Linux Bash script, but also functions under macOS. Your mileage may vary on other distros. The script with no specified options will query ARIN and a pool of BGP route servers. The route server is selected at random at runtime.
- Host: GitHub
- URL: https://github.com/trustedsec/hardcidr
- Owner: trustedsec
- License: bsd-2-clause
- Created: 2017-03-17T15:26:03.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2022-02-04T17:10:44.000Z (almost 3 years ago)
- Last Synced: 2024-12-31T07:12:20.584Z (10 days ago)
- Language: Shell
- Size: 2.99 MB
- Stars: 368
- Watchers: 16
- Forks: 56
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# hardCIDR
## Background
A Linux Bash script to discover the netblocks, or ranges, (in CIDR notation)
owned by the target organization during the intelligence gathering phase of
a penetration test. This information is maintained by the five Regional Internet
Registries (RIRs):
*ARIN* (North America)
*RIPE* (Europe/Asia/Middle East)
*APNIC* (Asia/Pacific)
*LACNIC* (Latin America)
*AfriNIC* (Africa)
In addition to netblocks and IP addresses, Autonomous System Numbers (ASNs) are
also of interest. ASNs are used as part of the Border Gateway Protocol (BGP) for
uniquely identifying each network on the Internet. Target organizations may have
their own ASNs due to the size of their network or as a result of redundant service
paths from peered service providers. These ASNs will reveal additional netblocks
owned by the organization.
## Requirements
ipcalc (for RIPE, APNIC, LACNIC, AfriNIC queries)
## LACNIC
A note on LACNIC before diving into the usage. LACNIC only allows query of either
network range, ASN, Org Handle, or PoC Handle. This does not help us in locating
these values based upon the organization name. They do however publish a list of
all assigned ranges on a publically accessible FTP server, along with their
rate-limiting thresholds. So, there is an accompanying data file, which the script
checks for, used to perform LACNIC queries locally. The script includes an update
option **-r**, that can be used to update this data on an interval of your choosing.
Approximate run time is just shy of 28 hours.
## Usage
The script with no specified options will query ARIN and a pool of BGP route servers.
The route server is selected at random at runtime. The **-h** option lists the help:
The options may be used in any combination, all, or none. Unfortunately, none of the
“other” RIRs note the actual CIDR notation of the range, so `ipcalc` is used to perform
this function. If it is not installed on your system, the script will install it for you.
At the prompts, enter the organization name, the email domain, and whether country codes
are used as part of the email. If answered **Y** to country codes, you will be prompted as
to whether they precede the domain name or are appended to the TLD. A directory will be
created for the output files in /tmp/. If the directory is found to exist, you will be
prompted whether to overwrite. If answered **N**, a time stamp will be appended to the
directory name.
The script queries each RIR, as well as a BGP route server, prompting along the way as
to whether records were located. Upon completion, three files will be generated: a CSV
based on Org Handle, a CSV based on PoC Handle, and a line delimited file of all located
raanges in CIDR notation.
Cancelling the script at any time will remove any temporary working files and the directory
created for the resultant output files.
It should be noted that, due to similarity in some organization names, you could get back
results not related to the target. The CSV files will provide the associated handles and
URLs for further validation where necessary. It is also possible that employees of the
target organization used their corporate email address to register their own domains.
These will be found within the results as well.
## Running with Docker
```
docker build -t hardcidr .
```
Building the hardcidr image
```
docker run -v $(pwd):/tmp -it hardcidr
```
Running the container. Output will be saved to current directory
## Additional Information
For more information, check out the blog post on the TrustedSec website:
[Classy Inter-Domain Routing Enumeration](https://www.trustedsec.com/blog/classy-inter-domain-routing-enumeration/)