On CrypTool DES is available in CBC mode as well as in ECB mode.
The key is entered in the Key entry dialog.
CrypTool contains a tool which performs a Brute-force attack on the DES encryption algorithm in ECB mode.
In the Examples chapter there is one example which covers both encryption and decryption using the Triple-DES encryption algorithm in CBC mode and also the Brute-force attack. This example can also be used for the DES encryption algorithm in ECB mode; the encrypted documents are of course different.