Bug 78223 - Milters should not run with root privilegies
Summary: Milters should not run with root privilegies
Status: CLOSED RAWHIDE
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: sendmail   
(Show other bugs)
Version: 8.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Florian La Roche
QA Contact: David Lawrence
URL:
Whiteboard:
Keywords: Security
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2002-11-20 11:03 UTC by Petr Krištof
Modified: 2007-04-18 16:48 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2003-01-12 11:31:13 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description Petr Krištof 2002-11-20 11:03:29 UTC
It is better to compile sendmail to do not allow run milters
with root privilegies.

Im suggest to add -D_FFR_MILTER_ROOT_UNSAFE.

Cut from libmilter/README:
Note: we strongly recommend not to run any milter as root.  Libmilter
does not need root access to communicate with sendmail.  It is a
good security practice to run a program only with root privileges
if really necessary.  A milter should probably check first whether
it runs as root and refuse to start in that case.  There is a
compile time option _FFR_MILTER_ROOT_UNSAFE which keeps libmilter
from unlinking a socket when running as root.  It is recommended
to turn on this option:

APPENDDEF(`conf_libmilter_ENVDEF', `-D_FFR_MILTER_ROOT_UNSAFE ')

Comment 1 Florian La Roche 2003-01-12 11:31:13 UTC
added to sendmail-8.12.7-3 or newer

thanks,

Florian La Roche



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