Patching a few Linux boxes

[Cubert]

Not sure that would make since.

Either it is or is not there so if you can get a listing from

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ls -al /root/LUM/

Then executing the same should not result in not found errors...

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/root/LUM/lum.sh SCAN

[maxgruv]

You are correct, it doesn't make sense. This is all taken from the same session:

#ls -al /root/LUM/

total 12
drwxr-xr-x 2 root root 4096 Jul 12 08:28 .
drwx------ 6 root root 4096 Jul 12 07:59 ..
-rwxrwxrwx 1 root root 2553 Jul 12 08:28 lum.sh

#/root/LUM/lum.sh SCAN

sh: 1: /root/LUM/lum.sh: not found

If you have no other suggestions then I'll chalk this up to a weird system issue. I've seen other indicators of things not working when they should on it as well, so I don't think it's necessarily a problem with the script or file. BUT if you have any other ideas (since I am most certainly not a Linux guru) then I would be all ears.

[Cubert]

Yea that's a new one for me?


lets try a few things be for giving up....

Can you cat that file?

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cat /root/LUM/lum.sh

Can you copy file to TMP?

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cp /root/LUM/lum.sh /var/tmp/

If copy is successful can you now execute file in tmp dir?

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/var/tmp/lum.sh SCAN

You can modify the LUM maintenance script located at "/script/maintenance/LUM Maintenances"

Edit the Write file line to write file into different directory, change line that executes file so it looks to new location and change the line that test for the file so it now looks to new location to see if file exists.

same with the line that changes the permissions on file to executable.

Seeing that services run as root this should not have any effect but seeing this odd behavior, this may be a means to see if its some security app block you.

[maxgruv]

Here are the results of the cat:

#cat /root/LUM/lum.sh

#!/usr/bin/bash

#----------------------------------------------------------
# Linux Update Manager
# desc: This script is used with the Linux Update Manager tool
# This tools scans for packages
# needing updates and the status of the linux host.
#
scriptVersion=1.0.25
#
#
#---------------------------------------------------------



if [ $EUID -ne 0 ]; then
echo "ERROR: Must be run as root"
exit 1
fi

deb=(ubuntu debian raspbian kali linuxmint)
rhe=(fedora rocky centos rhel amzn arch opensuse)
distroID=$(. /etc/os-release; echo $ID)
distroIDLIKE=$(. /etc/os-release; echo $ID_LIKE)
PM="apt"

if [[ " ${deb[*]} " =~ " ${distroID} " ]]; then
PM="apt"
elif [[ " ${deb[*]} " =~ " ${distroIDLIKE} " ]]; then
PM="apt"
elif [[ " ${rhe[*]} " =~ " ${distroID} " ]]; then
PM="yum"
else
PM="yum"
fi

CMD=$1
REBOOT=0
if [[ "$CMD" == *"SCAN"* ]]; then
if [[ "$PM" == *"apt"* ]]; then

a=$(apt-get --just-print upgrade 2>&1 | perl -ne 'if (/Inst\s([\w,\-,\d,\.,~,:,\ ] )\s\[([\w,\-,\d,\.,~,:,\ ] )\]\s\(([\w,\-,\d,\.,~,:,\ ] )\)? /i){print "\(\"39\", \"8423\", \"$1\", \"$2\", \"$3\"),"}')

elif [[ "$PM" == *"yum"* ]]; then

update=$(yum check-update)
installed=$(yum list installed)
a=$(awk 'BEGIN {FS=OFS=" "} NR==FNR {v[$1]=$2; next} {print (v[$1] ? "(\"39\",\"8423\", \"" $1 "\",\"" $2 "\",\"" v[$1] "\")," : "")}' <(echo "$update") <(echo "$installed") | column -t)

else
exit 1
fi

echo -n $a | sed 's/.$//'


elif [[ "$CMD" == *"TESTREBOOT"* ]] ; then

if [[ "$PM" == *"apt"* ]]; then
PM="apt"
PMV=$(apt -v |awk '{print $2}')
if [ -f /var/run/reboot-required ]; then
REBOOT=1
fi
elif [[ "$PM" == *"yum"* ]]; then
PM="yum"
PMV=$(yum list installed | grep yum.noarch | awk '{print $2}')
if ! command -v needs-restarting &> /dev/null
then
yum install yum-utils -y
fi
TESTREBOOT=$(needs-restarting -r)
if [[ $TESTREBOOT == *"Reboot is probably not necessary"* ]]; then
REBOOT=0
else
REBOOT=1
fi
else
exit 1
fi

ba='("39", "8423", "STG-COLO-UNMS", "Scout", "'$REBOOT'", "'$PM'", "'$PMV'",NOW())'
echo -n "$ba"


elif [[ "$CMD" == *"UPDATE"* ]] ; then

if [[ "$PM" == *"apt"* ]]; then

PM="apt"
apt-get update
apt-get upgrade -y
exit 0

elif [[ "$PM" == "yum" ]]; then

PM="yum"
yum check-update
yum update -y
exit 0
else
exit 1
fi

else
exit 1

fi

File copied to tmp:

#cp /root/LUM/lum.sh /var/tmp/

OK

However, trying to execute from tmp gives the same "not found" error:

#/var/tmp/lum.sh SCAN

sh: 1: /var/tmp/lum.sh: not found

I'm guess the problem is not that the file exists but that it simply doesn't want to execute due to some other weird system issue, but the error message is misleading. To my knowledge we don't have any special security software on this device, but it was something of a custom build so I'll check with the guy that deployed it to see if he might have any insight.