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Paul Howarth wrote:
On Thu, 17 Jan 2008 12:51:33 -0500
Daniel J Walsh <dwalsh(a)redhat.com> wrote:
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> Paul Howarth wrote:
>> Today I've done a bit of a clean-up of the local policy modules
>> I've had in use over the last couple of Fedora releases, removing
>> bits that are no longer needed and consolidating the remaining ones
>> into a single "localmisc" module. The results of this is:
>>
>> policy_module(localmisc, 0.1.34)
>>
>> require {
>> attribute mailserver_delivery;
>> type depmod_t;
>> type httpd_t;
>> type load_policy_t;
>> type procmail_t;
>> type procmail_tmp_t;
>> type pptp_t;
>> type restorecon_t;
>> type sendmail_t;
>> type setfiles_t;
>> type soundd_port_t;
>> type squid_t;
>> type useradd_t;
>> type var_t;
>> };
>>
>> # ========================================
>> # Things that probably need to go upstream
>> # ========================================
>>
>> # Milter sockets, why did this work before?
>> #allow sendmail_t initrc_t:unix_stream_socket { read write
>> connectto }; init_stream_connect_script(mailserver_delivery)
>> init_rw_script_stream_sockets(mailserver_delivery)
>>
> Already added.
>> # Allow misc command output to be sent to a pipe, needed for rpm
>> scriptlets # Probably not needed since Fedora 8
>> #unconfined_rw_pipes(depmod_t)
>> #unconfined_rw_pipes(load_policy_t)
>> #unconfined_rw_pipes(setfiles_t)
>> #unconfined_rw_pipes(useradd_t)
>>
>> # Allow pptp to manage its own processes
>> allow pptp_t self:process signal;
>>
> Added.
>> # Allow sendmail to read procmail tempfiles for forwarding
>> # (would need a new interface in procmail.if to do this properly)
>> allow sendmail_t procmail_tmp_t:file { read write getattr ioctl };
>>
> Added
Policy now has procmail_read_tmp_files(sendmail_t) but this doesn't
allow write access by sendmail. Sendmail needs to write into
procmail_tmp_t when a procmail recipe pipes a message into a filter and
that filter creates a temp file I believe.
I'm getting the AVCs anyway:
type=AVC msg=audit(1202162399.034:320138): avc: denied { write } for
pid=16452 comm="sendmail" path="/tmp/choplist.16383" dev=dm-1 ino=13
scontext=system_u:system_r:sendmail_t:s0
tcontext=system_u:object_r:procmail_tmp_t:s0 tclass=file type=SYSCALL
msg=audit(1202162399.034:320138): arch=40000003 syscall=11 success=yes
exit=0 a0=bf8febff a1=84ffe44 a2=bf8fe3a4 a3=84ffe44 items=0 ppid=16384
pid=16452 auid=0 uid=502 gid=502 euid=502 suid=502 fsuid=502 egid=51
sgid=51 fsgid=51 tty=(none) comm="sendmail"
exe="/usr/sbin/sendmail.sendmail" subj=system_u:system_r:sendmail_t:s0
key=(null) type=AVC msg=audit(1202162401.083:320139): avc: denied
{ write } for pid=16453 comm="sendmail"
path=2F746D702F63686F706C6973742E3136333833202864656C6574656429
dev=dm-1 ino=13 scontext=system_u:system_r:sendmail_t:s0
tcontext=system_u:object_r:procmail_tmp_t:s0 tclass=file
Paul.
Fixed in selinux-policy-3.0.8-84.fc8
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