FakeIKEd – Fake IKE Daemon Tool For MITM


FakeIKEd, or fiked for short, is a fake IKE daemon supporting just enough of the standards and Cisco extensions to attack commonly found insecure Cisco PSK+XAUTH VPN setups in what could be described as a semi MitM attack. Fiked can impersonate a VPN gateway’s IKE responder in order to capture XAUTH login credentials; it doesn’t currently do the client part of full MitM.

Fiked is partially based on vpnc and uses libgcrypt and optionally libnet.

Fiked supports IKEv1 in aggressive mode, using pre-shared keys and XAUTH. Supported algorithms are DES, 3DES, AES-128, AES-192, AES-256; MD5, SHA1; and DH groups 1, 2 and 5. IKE main mode is not supported.

The Attack

Basically, if you know the pre-shared key, also known as shared secret or group password, you can play Man in the Middle, impersonate the VPN gateway in IKE phase 1, and learn XAUTH user credentials in phase 2.

This attack is not new. It has been known for a long time that IKE using PSK with XAUTH is insecure, and this is not the first actual implementation of the attack.

To successfully demonstrate an attack on a VPN site, you need to know the shared secret, and you must be able to intercept the IKE traffic between the clients and the VPN gateway.


There are several ways to find out the shared secret, including being a legitimate user, grabbing it from some Cisco config file, using ike-crack, or layer 8 hackery.

There are also several ways to redirect the IKE traffic to your running fiked instance, including ARP spoofing, 802.11 hostap, or layer 1 hackery.

Usage

See the README file and fiked(1) manpage for more details.

Fiked builds and runs on FreeBSD, OpenBSD and Linux, and probably other BSD variants too. MacOS X is reported not to work.

You can download FakeIKEd here:

fiked-0.0.5.tar.bz2

Or read more here.

Posted in: Hacking Tools, Networking Hacking

,


Latest Posts:


BloodHound - Hacking Active Directory Trust Relationships BloodHound – Hacking Active Directory Trust Relationships
BloodHound is for hacking active directory trust relationships and it uses graph theory to reveal the hidden and often unintended relationships within an AD environment.
SecLists - Usernames, passwords, URLs, sensitive data patterns, fuzzing payloads, web shells SecLists – Usernames, passwords, URLs, sensitive data patterns, fuzzing payloads, web shells
SecLists is the security tester's companion. It's a collection of multiple types of lists used during security assessments, collected in one place.
DeepSound - Audio Steganography Tool DeepSound – Audio Steganography Tool
DeepSound is an audio steganography tool and audio converter that hides secret data into audio files, the application also enables you to extract from files.
2019 High Severity Vulnerabilities What are the MOST Critical Web Vulnerabilities in 2019?
So what is wild on the web this year? Need to know about the most critical web vulnerabilities in 2019 to protect your organization?
GoBuster - Directory/File & DNS Busting Tool in Go GoBuster – Directory/File & DNS Busting Tool in Go
GoBuster is a tool used to brute-force URIs (directories and files) in web sites and DNS subdomains (inc. wildcards) - a directory/file & DNS busting tool.
BDFProxy - Patch Binaries via MITM - BackdoorFactory + mitmProxy BDFProxy – Patch Binaries via MiTM – BackdoorFactory + mitmproxy
BDFProxy allows you to patch binaries via MiTM with The Backdoor Factory combined with mitmproxy enabling on the fly patching of binary downloads


One Response to FakeIKEd – Fake IKE Daemon Tool For MITM

  1. Jeff Price August 6, 2009 at 9:42 pm #

    Now this is cool. Good Job.