Heartbleeder
Tests your servers for OpenSSL CVE-2014-0160 aka Heartbleed.
WARNING: This is very untested, and you should verify the results independently. Pull requests welcome.
Usage
$ heartbleeder example.com
INSECURE - example.com:443 has the heartbeat extension enabled and is vulnerable
Postgres uses OpenSSL in a slightly different way. To test whether a Postgres server is vulnerable, run the following (defaults to port 5432):
$ heartbleeder -pg example.com
SECURE - example:5432 does not have the heartbeat extension enabled
Binaries are available from gobuild.io.
Build from source by running go get github.com/titanous/heartbleeder, which
will put the code in $GOPATH/src/github.com/titanous/heartbleeder and a binary
at $GOPATH/bin/heartbleeder.
Requires Go version >= 1.2. On Ubuntu godeb is an easy way of getting the latest version of Go.
Credits
The TLS implementation was borrowed from the Go standard library.