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authorTom Lane2004-10-22 00:24:27 +0000
committerTom Lane2004-10-22 00:24:27 +0000
commit5b7e88dbe0ad700e2994989c7b01f08f9e6b31d4 (patch)
tree20ae9130b73082eb85b2a5803361f1364eece770
parent25d1755a29ec77facafff42920403df13f218c96 (diff)
Prevent pg_ctl from being run as root. Since it uses configuration files
owned by postgres, doing "pg_ctl start" as root could allow a privilege escalation attack, as pointed out by iDEFENSE. Of course the postmaster would fail, but we ought to fail a little sooner to protect sysadmins unfamiliar with Postgres. The chosen fix is to disable root use of pg_ctl in all cases, just to be confident there are no other holes.
-rwxr-xr-xsrc/bin/pg_ctl/pg_ctl.sh10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/bin/pg_ctl/pg_ctl.sh b/src/bin/pg_ctl/pg_ctl.sh
index c0bffd44ee0..72fe2928735 100755
--- a/src/bin/pg_ctl/pg_ctl.sh
+++ b/src/bin/pg_ctl/pg_ctl.sh
@@ -8,7 +8,7 @@
#
#
# IDENTIFICATION
-# $Header: /cvsroot/pgsql/src/bin/pg_ctl/Attic/pg_ctl.sh,v 1.36.4.1 2004/08/28 21:10:00 momjian Exp $
+# $Header: /cvsroot/pgsql/src/bin/pg_ctl/Attic/pg_ctl.sh,v 1.36.4.2 2004/10/22 00:24:27 tgl Exp $
#
#-------------------------------------------------------------------------
@@ -111,6 +111,14 @@ fi
po_path="$PGPATH/postmaster"
+if [ `$PGPATH/pg_id -u` -eq 0 ]
+then
+ echo "$CMDNAME: cannot be run as root" 1>&2
+ echo "Please log in (using, e.g., \"su\") as the (unprivileged) user that will" 1>&2
+ echo "own the server process." 1>&2
+ exit 1
+fi
+
wait=
wait_seconds=60
logfile=