TMA-COS-6.2.10
Ensure users' dot files are not group or world writable
Deskripsi
While the system administrator can establish secure permissions for users' "dot" files, the users can easily override these. Group or world-writable user configuration files may enable malicious users to steal or modify other users' data or to gain another user's system privileges.
Cara pemeriksaan
Metode audit: Tinjauan manual
Rekomendasi ini tidak dapat diperiksa secara otomatis. Pemindaian akan menampilkannya beserta petunjuk ini saat Anda memberikan opsi --include-manual.
Run the following script and verify no results are returned: #!/bin/bash grep -E -v '^(system-halt|sync|system-shutdown)' /etc/passwd | awk -F: '($7 != "'"$(which nologin)"'" && $7 != "/bin/false") { print $1 " " $6 }' | while read user dir; do if [ ! -d "$dir" ]; then echo "The home directory ($dir) of user $user does not exist." else for file in $dir/.[A-Za-z0-9]*; do if [ ! -h "$file" -a -f "$file" ]; then fileperm=$(ls -ld $file | cut -f1 -d" ") if [ $(echo $fileperm | cut -c6) != "-" ]; then echo "Group Write permission set on file $file" fi if [ $(echo $fileperm | cut -c9) != "-" ]; then echo "Other Write permission set on file $file" fi fi done fi done
Cara perbaikan
Metode perbaikan: Panduan atau patch infrastruktur
Making global modifications to users' files without alerting the user community can result in unexpected outages and unhappy users. Therefore, it is recommended that a monitoring policy be established to report user dot file permissions and determine the action to be taken in accordance with site policy.
Properti
- Sistem operasi
- Apa saja
- Tag
- container-optimized-oscos
- Referensi
- CIS Google Container-Optimized OS Benchmark v1.2.0 - 6.2.10 Ensure users' dot files are not group or world writable