Date: Sun, 29 Aug 1999 18:18:54 -0600 From: Warner Losh <imp@village.org> To: dynamo@ime.net Cc: security@freebsd.org Subject: Re: Not sure if you got it... Message-ID: <199908300018.SAA90400@harmony.village.org> In-Reply-To: Your message of "Sat, 28 Aug 1999 22:22:12 EDT." <Pine.BSI.4.02.9908282221020.15859-100000@ime.net> References: <Pine.BSI.4.02.9908282221020.15859-100000@ime.net>
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In message <Pine.BSI.4.02.9908282221020.15859-100000@ime.net> dynamo@ime.net writes:
: this is my second try -- if you can gimmie an "ok" so i know you got this
: i would appreciate it.
Since this has been disclosed before I could put a fix in for rc, I'll
post my fixes here. It also increases the paranoia of clearing flags
from files as well as correct a minor grammar problem in a comment.
Sorry to jumble together the patches like this, but the /etc/rc* have
been "locked" under review lately until just recently. Look at thest
test -f addition.
Warner
Index: rc
===================================================================
RCS file: /home/imp/FreeBSD/CVS/src/etc/rc,v
retrieving revision 1.195
diff -u -r1.195 rc
--- rc 1999/08/27 23:23:43 1.195
+++ rc 1999/08/30 00:14:44
@@ -129,8 +129,11 @@
clean_var() {
if [ ! -f /var/run/clean_var ]; then
+ chflags -R 0 /var/run/* > /dev/null 2>&1
rm -rf /var/run/*
+ chflags 0 /var/spool/lock/* > /dev/null 2>&1
rm -f /var/spool/lock/*
+ chflags -R 0 /var/spool/uucp/.Temp/* > /dev/null 2>&1
rm -rf /var/spool/uucp/.Temp/*
# Keep a copy of the boot messages around
dmesg >/var/run/dmesg.boot
@@ -178,8 +181,8 @@
mount -a -t nfs
echo .
-# Whack the pty perms back into shape.
-chflags 0 /dev/tty[pqrsPQRS]*
+# Put the pty perms back into shape.
+chflags 0 /dev/tty[pqrsPQRS]* > /dev/null 2>&1
chmod 666 /dev/tty[pqrsPQRS]*
chown root:wheel /dev/tty[pqrsPQRS]*
@@ -200,14 +203,17 @@
# prune quickly with one rm, then use find to clean up /tmp/[lq]*
# (not needed with mfs /tmp, but doesn't hurt there...)
- (cd /tmp && rm -rf [a-km-pr-zA-Z]* &&
+ (cd /tmp && chflags -R 0 [a-km-pr-zA-Z]* && rm -rf [a-km-pr-zA-Z]* &&
find -d . ! -name . ! -name lost+found ! -name quota.user \
- ! -name quota.group -exec rm -rf -- {} \;)
+ ! -name quota.group -execdir chflags -R 0 {} \; &&
+ find -d . ! -name . ! -name lost+found ! -name quota.user \
+ ! -name quota.group -execdir rm -rf -- {} \;) > /dev/null 2>&1
fi
# Remove X lock files, since they will prevent you from restarting X11
# after a system crash.
+chflags 0 /tmp/.X*-lock /tmp/.X11-unix/* > /dev/null 2>&1
rm -f /tmp/.X*-lock /tmp/.X11-unix/*
# snapshot any kernel -c changes back to disk here <someday>
@@ -348,7 +354,7 @@
echo 'Recovering vi editor sessions'
for i in ${vibackup}; do
# Only test files that are readable.
- if test ! -r ${i}; then
+ if test ! -r ${i} -o ! -f ${i}; then
continue
fi
@@ -376,6 +382,7 @@
if test -n "${recfile}" -a -s "${recfile}"; then
sendmail -t < ${i}
else
+ chflags 0 ${i} > /dev/null 2>&1
rm -f ${i}
fi
done
@@ -400,7 +407,7 @@
fi
if [ "${update_motd}" != "NO" ]; then
- T=`mktemp /tmp/_motd.XXXXXX`
+ T=`mktemp /var/run/_motd.XXXXXX`
if [ $? -eq 0 ]; then
uname -v | sed -e 's,^\([^#]*\) #\(.* [1-2][0-9][0-9][0-9]\).*/\([^\]*\) $,\1 (\3) #\2,' > ${T}
awk '{if (NR == 1) {if ($1 == "FreeBSD") {next} else {print "\n"$0}} else {print}}' < /etc/motd >> ${T}
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