Archive for August, 2008

Brute-forcing pksc12 passphrases with OpenSSL

Monday, August 25th, 2008

For some project I needed to recover the password that was used to encrypt a PKCS12 key.

I found a nice patch for openssl by Aion but that did not compile on any of my machines.

After some trial and error, I was able to compile it under Debian Woody. For your convenience, I have put the openssl binary online. It runs on i386 linux systems.

Usage:

./openssl pkcs12 -in mycert.p12 -aion /usr/share/dict/words

Remember: it is ancient OpenSSL-0.9.7c so full of security bugs, hence only use it to recover lost passwords.

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Posted in Security | 2 Comments »

Rename VMware Virtual machines on ESX

Friday, August 8th, 2008

Ever wanted to rename a virtual machine and found out that the “Rename” option merely renames the “friendly name” in VirtualCenter? You could clone the VM to a new one with the proper name, but that requires a lot of downtime usually.
There is a quicker way:

  1. Shut down the VM
  2. Choose “Remove from inventory”
  3. Log into the ESX console and cd to the place where your VM is
  4. Rename the directory
  5. Rename all the files in the directory
  6. Change the names in the vmdk, vmsd, vmx, and vmxf files
  7. Browse the datastore and add the new vmx to the inventory

Or:

cd /vmfs/volumes/vmfs-data6
mv OldVM NewVM
cd NewVM
rename OldVM NewVM *
perl -pi -e 's/OldVM/NewVM/g' NewVM.vm*

Posted in VMware | 1 Comment »