WARNING: World writable directory /var/spool/mqueue

[Manuales]

hi .....
when i run the command sendmail, appears the message WARNING ...

AUSTRALIA:/->/usr/sbin/sendmail -v hola@patito.com.au
WARNING: World writable directory /var/spool/mqueue

WHy???

[John Payne_2]

/var/spool/mqueue holds the mail and headers for your mail. It being world writable means there is possibility of mail being intercepted and altered...

John

[Dennis Handly]

Because it is a security hole, "World writable directory" is a bad thing.

What does "ll -d /var/spool/mqueue" show.

[Manuales]

Now is appearing the following:

syslog failed: Resource temporarily unavailable, syslog output to stderr
Sendmail: gethostbyaddr(90.30.29.2) failed: 1

syslog failed: Resource temporarily unavailable, syslog output to stderr
Sendmail: gethostbyaddr(12.23.23.45) failed: 1

WARNING: World writable directory /var/spool/mqueue


i restarted again the syslog but the message continues appearing .....

[Manuales]

It is appearing:

/var/adm/syslog->ll -d /var/spool/mqueue
drwxrwxrwx 2 root sys 68608 Aug 4 23:30 /var/spool/mqueue

could it be the permissions?

[Dennis Handly · Accepted solution]

drwxrwxrwx 2 root sys /var/spool/mqueue
>could it be the permissions?

Of course. It shouldn't have "w" for the OTHER permission.

[Dennis Handly]

>It shouldn't have "w" for the OTHER permission.

Fix by:
# chmod o-w /var/spool/mqueue

There may be other permissions to remove?

[Manuales]

1.- first messgae
WARNING: World writable directory /var/spool/mqueue
i changed permissions: chmod 775 mqueue

2.- second message:
WARNING: Group writable directory /var/spool/mqueue
i changed permissions: chmod 755 mqueue

it fixed !!!!

now, only it is appearing:
syslog failed: Resource temporarily unavailable, syslog output to stderr
Sendmail: gethostbyaddr(100.10.10.80) failed: 1

syslog failed: Resource temporarily unavailable, syslog output to stderr
Sendmail: gethostbyaddr(19.16.13.7) failed: 1

what could be that????

thaks.

[Dennis Handly]

>There may be other permissions to remove?

On 11.23, the permissions are just: drwx------
So: # chmod u=rwx,g=,o= /var/spool/mqueue