We believe that your issue has been closed by the upload of
Version 0.23.3 of grml-live from Michael Prokop <mika@grml.org>.
The explanation is attached below

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Format: 1.8
Date: Sat, 19 Apr 2014 22:40:29 +0200
Source: grml-live
Binary: grml-live grml-live-db
Architecture: source all
Version: 0.23.3
Distribution: unstable
Urgency: medium
Maintainer: Michael Prokop <mika@grml.org>
Changed-By: Michael Prokop <mika@grml.org>
Description: 
 grml-live  - build system for creating a Grml (based) Linux live system
 grml-live-db - log package build information of grml-live to database
Changes: 
 grml-live (0.23.3) unstable; urgency=medium
 .
   * [61d5ddd] Drop "forensic" boot option from Forensic Mode boot menu
   * [8f28ef2] debconf: enable permit-root-login for openssh-server package
   * [0ad0e81] Provide GRMLBASE script 49-sshd to adjust sshd configuration
     [Closes: issue1304]
   * Software related changes:
     - [908cad4] replace zd1211-firmware with firmware-zd1211
Checksums-Sha1: 
 2cdfbb6b9540ca281bf764ca98da5caa1dee3c46 978 grml-live_0.23.3.dsc
 9245925a775e49883f6f79714c406b8991017e90 467200 grml-live_0.23.3.tar.xz
 850f89752689870931f159aa4b0877cec453daaa 494060 grml-live_0.23.3_all.deb
 c8ea3ee1acf83bb6add8bac4688de4d6f82e66b5 67318 grml-live-db_0.23.3_all.deb
Checksums-Sha256: 
 4ebad21c7ebaeb88411fee6e27aa2837733a4a1d431f59ddf32e80ca086c79a5 978 grml-live_0.23.3.dsc
 784934d7f6823b9e7d07e8e9f2691f25f071e42b3336305ee20ca187bbff7164 467200 grml-live_0.23.3.tar.xz
 e728042757273686e5ff548e11556eb5d627ac3bf72a146569c93ce264cf0999 494060 grml-live_0.23.3_all.deb
 469ee702ca2f678d9b7d7c5a29469a4dae61545ad076f863595a8e134f08c168 67318 grml-live-db_0.23.3_all.deb
Files: 
 3dc4a9074e82432d3613ec196c6d8870 978 grml extra grml-live_0.23.3.dsc
 809eac99f659e13cad998dedf59fdc34 467200 grml extra grml-live_0.23.3.tar.xz
 457b9283189cf11c47abe4c162a45f78 494060 grml extra grml-live_0.23.3_all.deb
 b14e2a7791b7855ca7646a40569f3052 67318 grml extra grml-live-db_0.23.3_all.deb

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Recent ssh versions in Debian don't allow root login by default any longer, we
have to adjust that to allow root logins for our live use case.