Bug#841257: sendmail: Privilege escalation from group smmsp to (user) root

2016-11-09 Thread paul . szabo
Dear Andreas, > I have a completely untested patch sitting in GIT - do you have a > possibility to test packages built from that? I could replace files, or DEB packages, on some test machines. Do not know whether that testing would be exhaustive: do not know how many features of the sendmail pack

Bug#841257: sendmail: Privilege escalation from group smmsp to (user) root

2016-10-18 Thread paul . szabo
Hmm (again) ... Maybe file /usr/share/sendmail/sendmail needs updating also? It is almost identical to /etc/init.d/sendmail, and in file /etc/cron.daily/sendmail I notice the lines: ... #-- # Every so often, give sendmail

Bug#841257: sendmail: Privilege escalation from group smmsp to (user) root

2016-10-18 Thread paul . szabo
Hmm... you may also need to (once) do: chown smmsp /var/run/sendmail/stampdir/reload when adopting my patch. Cheers, Paul

Bug#841257: sendmail: Privilege escalation from group smmsp to (user) root

2016-10-18 Thread Paul Szabo
Package: sendmail Version: 8.14.4-8+deb8u1 Severity: grave Tags: patch security Justification: user security hole Supposing that due to some bug in sendmail, we were able to execute commands as group smmsp, then that might be leveraged to cause root to create any (empty) file. The directory /var