Bug#679765: [Pkg-puppet-devel] Bug#679765: puppetmaster - CA prone to MD5 collision attacks

2012-07-06 Thread Stig Sandbeck Mathisen
The patch at https://github.com/puppetlabs/puppet/pull/616/files changes the default hash settings from MD5 and SHA1 to SHA256. This should have no effect on operation (or security) on existing environments. With an existinc CA, I've tested adding nodes with a patched master and client, a

Bug#679765: [Pkg-puppet-devel] Bug#679765: puppetmaster - CA prone to MD5 collision attacks

2012-07-01 Thread Stig Sandbeck Mathisen
Bastian Blank wa...@debian.org writes: The included CA still only displays MD5 fingerprints of certificates. MD5 is not longer save against collision attacks. So a rogue client is able to use a collision attack to get a certificate for the puppet master and overtake the clients. Could you