nnp_transition

nnp_transition

[Russell Coker]

Getting close to a Debian release so I have to sort out the nnp_transition 
rules.  How do I work out what's going on here?  Do I just assume that as 
dpkg_t has generally less access than unconfined_t it's ok?  Is it worth 
investigating why something in apt is setting NNP?

type=PROCTITLE msg=audit(22/01/19 07:08:31.692:1104) : proctitle=/usr/bin/dpkg 
--print-foreign-architectures 
type=SYSCALL msg=audit(22/01/19 07:08:31.692:1104) : arch=x86_64 
syscall=execve success=yes exit=0 a0=0x5611b27bd0e0 a1=0x5611b27c1590 
a2=0x7fff0e8f51f0 a3=0x1 items=0 ppid=18604 pid=18605 auid=root uid=_apt 
gid=nogroup euid=_apt suid=_apt fsuid=_apt egid=nogroup sgid=nogroup 
fsgid=nogroup tty=pts2 ses=9 comm=dpkg exe=/usr/bin/dpkg 
subj=unconfined_u:unconfined_r:dpkg_t:s0-s0:c0.c1023 key=(null) 
type=AVC msg=audit(22/01/19 07:08:31.692:1104) : avc:  granted  { 
nnp_transition } for  pid=18605 comm=apt-config 
scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 
tcontext=unconfined_u:unconfined_r:dpkg_t:s0-s0:c0.c1023 tclass=process2

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Re: nnp_transition

[Dominick Grift]

Russell Coker <russell@coker.com.au> writes:

> Getting close to a Debian release so I have to sort out the nnp_transition 
> rules.  How do I work out what's going on here?  Do I just assume that as 
> dpkg_t has generally less access than unconfined_t it's ok?  Is it worth 
> investigating why something in apt is setting NNP?

Not worth looking into if you ask me (this is just the tip of the mountain). You no longer have to worry about
type bounds if you enable the polcap (which i think is the default)

>
> type=PROCTITLE msg=audit(22/01/19 07:08:31.692:1104) : proctitle=/usr/bin/dpkg 
> --print-foreign-architectures 
> type=SYSCALL msg=audit(22/01/19 07:08:31.692:1104) : arch=x86_64 
> syscall=execve success=yes exit=0 a0=0x5611b27bd0e0 a1=0x5611b27c1590 
> a2=0x7fff0e8f51f0 a3=0x1 items=0 ppid=18604 pid=18605 auid=root uid=_apt 
> gid=nogroup euid=_apt suid=_apt fsuid=_apt egid=nogroup sgid=nogroup 
> fsgid=nogroup tty=pts2 ses=9 comm=dpkg exe=/usr/bin/dpkg 
> subj=unconfined_u:unconfined_r:dpkg_t:s0-s0:c0.c1023 key=(null) 
> type=AVC msg=audit(22/01/19 07:08:31.692:1104) : avc:  granted  { 
> nnp_transition } for  pid=18605 comm=apt-config 
> scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 
> tcontext=unconfined_u:unconfined_r:dpkg_t:s0-s0:c0.c1023 tclass=process2

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Dominick Grift

Re: nnp_transition

[Russell Coker]

On Tuesday, 22 January 2019 7:11:40 PM AEDT Dominick Grift wrote:
> > Getting close to a Debian release so I have to sort out the nnp_transition
> > rules.  How do I work out what's going on here?  Do I just assume that as
> > dpkg_t has generally less access than unconfined_t it's ok?  Is it worth
> > investigating why something in apt is setting NNP?
> 
> Not worth looking into if you ask me (this is just the tip of the mountain).
> You no longer have to worry about type bounds if you enable the polcap
> (which i think is the default)

What do you mean by "enable the polcap"?

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Re: nnp_transition

[Dominick Grift]

Russell Coker <russell@coker.com.au> writes:

> On Tuesday, 22 January 2019 7:11:40 PM AEDT Dominick Grift wrote:
>> > Getting close to a Debian release so I have to sort out the nnp_transition
>> > rules.  How do I work out what's going on here?  Do I just assume that as
>> > dpkg_t has generally less access than unconfined_t it's ok?  Is it worth
>> > investigating why something in apt is setting NNP?
>> 
>> Not worth looking into if you ask me (this is just the tip of the mountain).
>> You no longer have to worry about type bounds if you enable the polcap
>> (which i think is the default)
>
> What do you mean by "enable the polcap"?

[root@brutus ~]# seinfo --polcap | grep nnp
   nnp_nosuid_transition

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Dominick Grift