On 08/06/2021 14:51, Stephen Gallagher wrote:

I was thinking about suggesting a similar PAM module to convert
existing hashes, but I suspect that we'd be coming up against some
issues with security policy and separation of actions. Right now, I
expect that SELinux permits PAM processes to have read-only access to
/etc/shadow, but such a change would necessitate read/write access,
which is riskier. It's also why PAM has separate activities for
authentication, authorization and password-change.

Surely it has to allow write as well because any authentication can
already prompt for a password change if the password is expired?

Tom

--
Tom Hughes (t...@compton.nu)
http://compton.nu/
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