#1465: MIT Kerberos Password Checking ----------------------------------------+----------------------------------- Reporter: [EMAIL PROTECTED] | Owner: [email protected] Type: defect | Status: closed Priority: high | Milestone: future Component: BOOK | Version: SVN Severity: normal | Resolution: fixed Keywords: | ----------------------------------------+----------------------------------- Changes (by [EMAIL PROTECTED]):
* status: new => closed * resolution: => fixed Old description: > The MIT Kerberos package has code which will use a dictionary file > to check for strong passwords. > > I suggest that the MIT Kerberos instructions add an "Additional Download" > section to download the CrackLib dictionary > > download: http://prdownloads.sourceforge.net/cracklib/cracklib-words.gz > MD5 sum: d18e670e5df560a8745e1b4dede8f84f > Size: 4.4 MB > > and install it using the CrackLib instructions > > install -v -m644 -D ../cracklib-words.gz \ > /usr/share/dict/cracklib-words.gz && > gunzip -v /usr/share/dict/cracklib-words.gz && > ln -v -s cracklib-words /usr/share/dict/words > > then provide instructions in the configuration section to create > a kdc.conf file and add the dict_file flag to the file. > > This would then install MIT Kerberos using strong password checking > as the default. Unfortunately, I cannot find a way to use an additional > file (similar to the CrackLib cracklib-extra-words file) to use > additional, site-specific words. > > Perhaps a mention to add these site-specific extra words to the > CrackLib dictionary would suffice. > > Exectuve Summary of this bug: > > If a site is worried (smart enough) to use a Kerberos authentication > system to provide strong and encrypted authentication, but does not > force users to use strong passwords, the security of the system is > drastically reduced, and can easily be compromised. New description: The MIT Kerberos package has code which will use a dictionary file to check for strong passwords. I suggest that the MIT Kerberos instructions add an "Additional Download" section to download the CrackLib dictionary download: http://prdownloads.sourceforge.net/cracklib/cracklib-words.gz MD5 sum: d18e670e5df560a8745e1b4dede8f84f Size: 4.4 MB and install it using the CrackLib instructions install -v -m644 -D ../cracklib-words.gz \ /usr/share/dict/cracklib-words.gz && gunzip -v /usr/share/dict/cracklib-words.gz && ln -v -s cracklib-words /usr/share/dict/words then provide instructions in the configuration section to create a kdc.conf file and add the dict_file flag to the file. This would then install MIT Kerberos using strong password checking as the default. Unfortunately, I cannot find a way to use an additional file (similar to the CrackLib cracklib-extra-words file) to use additional, site-specific words. Perhaps a mention to add these site-specific extra words to the CrackLib dictionary would suffice. Exectuve Summary of this bug: If a site is worried (smart enough) to use a Kerberos authentication system to provide strong and encrypted authentication, but does not force users to use strong passwords, the security of the system is drastically reduced, and can easily be compromised. Comment: Added information to the MIT Kerberos instructions that recommends installing a word dictionary and how to configure the installation to use it. -- Ticket URL: <http://wiki.linuxfromscratch.org/blfs/ticket/1465#comment:1> BLFS Trac <http://wiki.linuxfromscratch.org/blfs> Beyond Linux From Scratch -- http://linuxfromscratch.org/mailman/listinfo/blfs-book FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
