Re: Following up on: Three steps we could take to make supply chain attacks a bit harder

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On Mon, Jul 29, 2024 at 03:33:21PM GMT, Gordon Messmer wrote:
> tl;dr: Quick update, and one question: Are there other packages that should
> be monitored?
> 
> 
> 
> On 2024-06-24 9:03 PM, Gordon Messmer wrote:
> > (As a topic for later: the tirpc library exports functions with the same
> > name as functions that appear in libc, so the behavior of erroring on
> > duplicate symbols needs to be rationalized.  Maybe an exemption for
> > libtirpc.so?  Are there other libraries that do this?)
> 
> 
> For now, I've added a list of symbols have have been found in multiple
> libraries in services that I've checked.  There are some symbols defined in
> libc and libm, and in libc and libtirpc, and in libsasl2 and some of its
> related libraries.  There's probably a better implementation than this...
> 
> 
> > I have a proof-of-concept test implemented for the openssh package, in
> > this pull request:
> > https://src.fedoraproject.org/rpms/openssh/pull-request/73
> 
> 
> Over the weekend, I opened a series of PRs for other services that are
> probably frequently exposed to the public: sendmail, exim, postfix,
> cyrus-imapd, haproxy, nginx, and httpd.  These are lower-value targets than
> sshd, since they don't run as root and may be run in a restricted SELinux
> domain, but I tend to think that anything that provides an authentication
> backend or listens for public connections should be checked.  I'll work on
> 389-ds and the krb5 packages later...  Any other packages that might be
> worth monitoring?


Some possible ones I'll toss out there:

avahi-daemon
cups
rsyslog
dovecot
cockpit

Thanks again for doing this. 

kevin

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