Rule ID
SV-215318r958402_rule
Version
V3R2
CCIs
A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user's session has idled and take action to initiate the session lock. The session lock is implemented at the point where session activity can be determined and/or controlled.
If CDE (X11) is not used on AIX, this is Not Applicable.
From the command prompt, run the following script:
for file in /usr/dt/config/*/sys.resources; do
etc_file=`echo $file | sed -e s/usr/etc/`
echo "\nChecking config file "$etc_file"..."
if [[ ! -f $etc_file ]]; then
echo "Missing config file "$etc_file
else
cat $etc_file |grep 'dtsession\*saverTimeout:'
cat $etc_file |grep 'dtsession\*lockTimeout:'
fi
done
The above script should yield the following output:
Checking config file /etc/dt/config/C/sys.resources...
Missing config file /etc/dt/config/C/sys.resources
Checking config file /etc/dt/config/POSIX/sys.resources...
dtsession*saverTimeout: 15
dtsession*lockTimeout: 30
Checking config file /etc/dt/config/en_US/sys.resources...
dtsession*saverTimeout: 15
dtsession*lockTimeout: 25
If the result of the script shows any config file missing, or any of the "dtsession*saverTimeout" or "dtsession*lockTimeout" values are greater than "15", this is a finding.From the command prompt, run the following script to set the default timeout parameters "dtsession*saverTimeout:" and "dtsession*lockTimeout:" as "15" minutes:
for file in /usr/dt/config/*/sys.resources; do
etc_file=`echo $file | sed -e s/usr/etc/`
echo "\nupdating config file "$etc_file"..."
if [[ ! -f $etc_file ]]; then
dir=`dirname $file | sed -e s/usr/etc/`
mkdir -p $dir
echo 'dtsession*saverTimeout: 15' >> $dir/sys.resources
echo 'dtsession*lockTimeout: 15' >> $dir/sys.resources
else
cp $etc_file $etc_file.bak
cat $etc_file | grep -v 'dtsession\*saverTimeout:' > $etc_file.sav
cat $etc_file.sav | grep -v 'dtsession\*lockTimeout:' > $etc_file
echo 'dtsession*saverTimeout: 15' >> $etc_file
echo 'dtsession*lockTimeout: 15' >> $etc_file
fi
done