Certainly Tavis's original attack is impossible, since you can't create the hardlink:
$ ln /bin/ping /tmp/target ln: failed to create hard link '/tmp/target' => '/bin/ping': Operation not permitted I don't know when the change was made to prevent hard-linking files the user doesn't own, but it isn't specific to suid binaries: $ ln /bin/bash /tmp/target ln: failed to create hard link '/tmp/target' => '/bin/bash': Operation not permitted -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/565002 Title: ldopen failing with relative path when linux capability is set To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/565002/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
